81350400

素因数分解:

$2^8\times 3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{223}}^1$

素因数の和:271

約数の個数: 216

約数和(自身を含む): 283870720

約数和(自身を除く): 202520320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 25, 30, 32, 38, 40, 48, 50, 57, 60, 64, 75, 76, 80, 95, 96, 100, 114, 120, 128, 150, 152, 160, 190, 192, 200, 223, 228, 240, 256, 285, 300, 304, 320, 380, 384, 400, 446, 456, 475, 480, 570, 600, 608, 640, 669, 760, 768, 800, 892, 912, 950, 960, 1115, 1140, 1200, 1216, 1280, 1338, 1425, 1520, 1600, 1784, 1824, 1900, 1920, 2230, 2280, 2400, 2432, 2676, 2850, 3040, 3200, 3345, 3568, 3648, 3800, 3840, 4237, 4460, 4560, 4800, 4864, 5352, 5575, 5700, 6080, 6400, 6690, 7136, 7296, 7600, 8474, 8920, 9120, 9600, 10704, 11150, 11400, 12160, 12711, 13380, 14272, 14592, 15200, 16725, 16948, 17840, 18240, 19200, 21185, 21408, 22300, 22800, 24320, 25422, 26760, 28544, 30400, 33450, 33896, 35680, 36480, 42370, 42816, 44600, 45600, 50844, 53520, 57088, 60800, 63555, 66900, 67792, 71360, 72960, 84740, 85632, 89200, 91200, 101688, 105925, 107040, 121600, 127110, 133800, 135584, 142720, 169480, 171264, 178400, 182400, 203376, 211850, 214080, 254220, 267600, 271168, 285440, 317775, 338960, 356800, 364800, 406752, 423700, 428160, 508440, 535200, 542336, 635550, 677920, 713600, 813504, 847400, 856320, 1016880, 1070400, 1084672, 1271100, 1355840, 1427200, 1627008, 1694800, 2033760, 2140800, 2542200, 2711680, 3254016, 3389600, 4067520, 4281600, 5084400, 5423360, 6779200, 8135040, 10168800, 13558400, 16270080, 20337600, 27116800, 40675200, 81350400]

約数ペア:

[(1, 81350400), (2, 40675200), (3, 27116800), (4, 20337600), (5, 16270080), (6, 13558400), (8, 10168800), (10, 8135040), (12, 6779200), (15, 5423360), (16, 5084400), (19, 4281600), (20, 4067520), (24, 3389600), (25, 3254016), (30, 2711680), (32, 2542200), (38, 2140800), (40, 2033760), (48, 1694800), (50, 1627008), (57, 1427200), (60, 1355840), (64, 1271100), (75, 1084672), (76, 1070400), (80, 1016880), (95, 856320), (96, 847400), (100, 813504), (114, 713600), (120, 677920), (128, 635550), (150, 542336), (152, 535200), (160, 508440), (190, 428160), (192, 423700), (200, 406752), (223, 364800), (228, 356800), (240, 338960), (256, 317775), (285, 285440), (300, 271168), (304, 267600), (320, 254220), (380, 214080), (384, 211850), (400, 203376), (446, 182400), (456, 178400), (475, 171264), (480, 169480), (570, 142720), (600, 135584), (608, 133800), (640, 127110), (669, 121600), (760, 107040), (768, 105925), (800, 101688), (892, 91200), (912, 89200), (950, 85632), (960, 84740), (1115, 72960), (1140, 71360), (1200, 67792), (1216, 66900), (1280, 63555), (1338, 60800), (1425, 57088), (1520, 53520), (1600, 50844), (1784, 45600), (1824, 44600), (1900, 42816), (1920, 42370), (2230, 36480), (2280, 35680), (2400, 33896), (2432, 33450), (2676, 30400), (2850, 28544), (3040, 26760), (3200, 25422), (3345, 24320), (3568, 22800), (3648, 22300), (3800, 21408), (3840, 21185), (4237, 19200), (4460, 18240), (4560, 17840), (4800, 16948), (4864, 16725), (5352, 15200), (5575, 14592), (5700, 14272), (6080, 13380), (6400, 12711), (6690, 12160), (7136, 11400), (7296, 11150), (7600, 10704), (8474, 9600), (8920, 9120)]