20512890880

素因数分解:

$2^{13}\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{331}}^1$

素因数の和:468

約数の個数: 224

約数和(自身を含む): 52868596320

約数和(自身を除く): 32355705440

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 89, 128, 136, 160, 170, 178, 256, 272, 320, 331, 340, 356, 445, 512, 544, 640, 662, 680, 712, 890, 1024, 1088, 1280, 1324, 1360, 1424, 1513, 1655, 1780, 2048, 2176, 2560, 2648, 2720, 2848, 3026, 3310, 3560, 4096, 4352, 5120, 5296, 5440, 5627, 5696, 6052, 6620, 7120, 7565, 8192, 8704, 10240, 10592, 10880, 11254, 11392, 12104, 13240, 14240, 15130, 17408, 20480, 21184, 21760, 22508, 22784, 24208, 26480, 28135, 28480, 29459, 30260, 34816, 40960, 42368, 43520, 45016, 45568, 48416, 52960, 56270, 56960, 58918, 60520, 69632, 84736, 87040, 90032, 91136, 96832, 105920, 112540, 113920, 117836, 121040, 139264, 147295, 169472, 174080, 180064, 182272, 193664, 211840, 225080, 227840, 235672, 242080, 294590, 338944, 348160, 360128, 364544, 387328, 423680, 450160, 455680, 471344, 484160, 500803, 589180, 677888, 696320, 720256, 729088, 774656, 847360, 900320, 911360, 942688, 968320, 1001606, 1178360, 1355776, 1440512, 1549312, 1694720, 1800640, 1822720, 1885376, 1936640, 2003212, 2356720, 2504015, 2711552, 2881024, 3098624, 3389440, 3601280, 3645440, 3770752, 3873280, 4006424, 4713440, 5008030, 5762048, 6197248, 6778880, 7202560, 7541504, 7746560, 8012848, 9426880, 10016060, 11524096, 12394496, 13557760, 14405120, 15083008, 15493120, 16025696, 18853760, 20032120, 23048192, 28810240, 30166016, 30986240, 32051392, 37707520, 40064240, 46096384, 57620480, 60332032, 61972480, 64102784, 75415040, 80128480, 115240960, 120664064, 128205568, 150830080, 160256960, 230481920, 241328128, 256411136, 301660160, 320513920, 512822272, 603320320, 641027840, 1025644544, 1206640640, 1282055680, 2051289088, 2564111360, 4102578176, 5128222720, 10256445440, 20512890880]

約数ペア:

[(1, 20512890880), (2, 10256445440), (4, 5128222720), (5, 4102578176), (8, 2564111360), (10, 2051289088), (16, 1282055680), (17, 1206640640), (20, 1025644544), (32, 641027840), (34, 603320320), (40, 512822272), (64, 320513920), (68, 301660160), (80, 256411136), (85, 241328128), (89, 230481920), (128, 160256960), (136, 150830080), (160, 128205568), (170, 120664064), (178, 115240960), (256, 80128480), (272, 75415040), (320, 64102784), (331, 61972480), (340, 60332032), (356, 57620480), (445, 46096384), (512, 40064240), (544, 37707520), (640, 32051392), (662, 30986240), (680, 30166016), (712, 28810240), (890, 23048192), (1024, 20032120), (1088, 18853760), (1280, 16025696), (1324, 15493120), (1360, 15083008), (1424, 14405120), (1513, 13557760), (1655, 12394496), (1780, 11524096), (2048, 10016060), (2176, 9426880), (2560, 8012848), (2648, 7746560), (2720, 7541504), (2848, 7202560), (3026, 6778880), (3310, 6197248), (3560, 5762048), (4096, 5008030), (4352, 4713440), (5120, 4006424), (5296, 3873280), (5440, 3770752), (5627, 3645440), (5696, 3601280), (6052, 3389440), (6620, 3098624), (7120, 2881024), (7565, 2711552), (8192, 2504015), (8704, 2356720), (10240, 2003212), (10592, 1936640), (10880, 1885376), (11254, 1822720), (11392, 1800640), (12104, 1694720), (13240, 1549312), (14240, 1440512), (15130, 1355776), (17408, 1178360), (20480, 1001606), (21184, 968320), (21760, 942688), (22508, 911360), (22784, 900320), (24208, 847360), (26480, 774656), (28135, 729088), (28480, 720256), (29459, 696320), (30260, 677888), (34816, 589180), (40960, 500803), (42368, 484160), (43520, 471344), (45016, 455680), (45568, 450160), (48416, 423680), (52960, 387328), (56270, 364544), (56960, 360128), (58918, 348160), (60520, 338944), (69632, 294590), (84736, 242080), (87040, 235672), (90032, 227840), (91136, 225080), (96832, 211840), (105920, 193664), (112540, 182272), (113920, 180064), (117836, 174080), (121040, 169472), (139264, 147295)]