20920947200

素因数分解:

$2^9\times 5^2\times {\mathrm{23}}^1\times {\mathrm{179}}^1\times {\mathrm{397}}^1$

素因数の和:627

約数の個数: 240

約数和(自身を含む): 54526063680

約数和(自身を除く): 33605116480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 25, 32, 40, 46, 50, 64, 80, 92, 100, 115, 128, 160, 179, 184, 200, 230, 256, 320, 358, 368, 397, 400, 460, 512, 575, 640, 716, 736, 794, 800, 895, 920, 1150, 1280, 1432, 1472, 1588, 1600, 1790, 1840, 1985, 2300, 2560, 2864, 2944, 3176, 3200, 3580, 3680, 3970, 4117, 4475, 4600, 5728, 5888, 6352, 6400, 7160, 7360, 7940, 8234, 8950, 9131, 9200, 9925, 11456, 11776, 12704, 12800, 14320, 14720, 15880, 16468, 17900, 18262, 18400, 19850, 20585, 22912, 25408, 28640, 29440, 31760, 32936, 35800, 36524, 36800, 39700, 41170, 45655, 45824, 50816, 57280, 58880, 63520, 65872, 71063, 71600, 73048, 73600, 79400, 82340, 91310, 91648, 101632, 102925, 114560, 127040, 131744, 142126, 143200, 146096, 147200, 158800, 164680, 182620, 203264, 205850, 228275, 229120, 254080, 263488, 284252, 286400, 292192, 294400, 317600, 329360, 355315, 365240, 411700, 456550, 458240, 508160, 526976, 568504, 572800, 584384, 635200, 658720, 710630, 730480, 823400, 913100, 1016320, 1053952, 1137008, 1145600, 1168768, 1270400, 1317440, 1421260, 1460960, 1634449, 1646800, 1776575, 1826200, 2107904, 2274016, 2291200, 2337536, 2540800, 2634880, 2842520, 2921920, 3268898, 3293600, 3553150, 3652400, 4548032, 4675072, 5081600, 5269760, 5685040, 5843840, 6537796, 6587200, 7106300, 7304800, 8172245, 9096064, 10539520, 11370080, 11687680, 13075592, 13174400, 14212600, 14609600, 16344490, 18192128, 22740160, 23375360, 26151184, 26348800, 28425200, 29219200, 32688980, 36384256, 40861225, 45480320, 52302368, 52697600, 56850400, 58438400, 65377960, 81722450, 90960640, 104604736, 113700800, 116876800, 130755920, 163444900, 181921280, 209209472, 227401600, 261511840, 326889800, 418418944, 454803200, 523023680, 653779600, 836837888, 909606400, 1046047360, 1307559200, 2092094720, 2615118400, 4184189440, 5230236800, 10460473600, 20920947200]

約数ペア:

[(1, 20920947200), (2, 10460473600), (4, 5230236800), (5, 4184189440), (8, 2615118400), (10, 2092094720), (16, 1307559200), (20, 1046047360), (23, 909606400), (25, 836837888), (32, 653779600), (40, 523023680), (46, 454803200), (50, 418418944), (64, 326889800), (80, 261511840), (92, 227401600), (100, 209209472), (115, 181921280), (128, 163444900), (160, 130755920), (179, 116876800), (184, 113700800), (200, 104604736), (230, 90960640), (256, 81722450), (320, 65377960), (358, 58438400), (368, 56850400), (397, 52697600), (400, 52302368), (460, 45480320), (512, 40861225), (575, 36384256), (640, 32688980), (716, 29219200), (736, 28425200), (794, 26348800), (800, 26151184), (895, 23375360), (920, 22740160), (1150, 18192128), (1280, 16344490), (1432, 14609600), (1472, 14212600), (1588, 13174400), (1600, 13075592), (1790, 11687680), (1840, 11370080), (1985, 10539520), (2300, 9096064), (2560, 8172245), (2864, 7304800), (2944, 7106300), (3176, 6587200), (3200, 6537796), (3580, 5843840), (3680, 5685040), (3970, 5269760), (4117, 5081600), (4475, 4675072), (4600, 4548032), (5728, 3652400), (5888, 3553150), (6352, 3293600), (6400, 3268898), (7160, 2921920), (7360, 2842520), (7940, 2634880), (8234, 2540800), (8950, 2337536), (9131, 2291200), (9200, 2274016), (9925, 2107904), (11456, 1826200), (11776, 1776575), (12704, 1646800), (12800, 1634449), (14320, 1460960), (14720, 1421260), (15880, 1317440), (16468, 1270400), (17900, 1168768), (18262, 1145600), (18400, 1137008), (19850, 1053952), (20585, 1016320), (22912, 913100), (25408, 823400), (28640, 730480), (29440, 710630), (31760, 658720), (32936, 635200), (35800, 584384), (36524, 572800), (36800, 568504), (39700, 526976), (41170, 508160), (45655, 458240), (45824, 456550), (50816, 411700), (57280, 365240), (58880, 355315), (63520, 329360), (65872, 317600), (71063, 294400), (71600, 292192), (73048, 286400), (73600, 284252), (79400, 263488), (82340, 254080), (91310, 229120), (91648, 228275), (101632, 205850), (102925, 203264), (114560, 182620), (127040, 164680), (131744, 158800), (142126, 147200), (143200, 146096)]