90321920

素因数分解:

$2^{10}\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1$

素因数の和:120

約数の個数: 176

約数和(自身を含む): 247605120

約数和(自身を除く): 157283200

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 32, 40, 46, 52, 59, 64, 65, 80, 92, 104, 115, 118, 128, 130, 160, 184, 208, 230, 236, 256, 260, 295, 299, 320, 368, 416, 460, 472, 512, 520, 590, 598, 640, 736, 767, 832, 920, 944, 1024, 1040, 1180, 1196, 1280, 1357, 1472, 1495, 1534, 1664, 1840, 1888, 2080, 2360, 2392, 2560, 2714, 2944, 2990, 3068, 3328, 3680, 3776, 3835, 4160, 4720, 4784, 5120, 5428, 5888, 5980, 6136, 6656, 6785, 7360, 7552, 7670, 8320, 9440, 9568, 10856, 11776, 11960, 12272, 13312, 13570, 14720, 15104, 15340, 16640, 17641, 18880, 19136, 21712, 23552, 23920, 24544, 27140, 29440, 30208, 30680, 33280, 35282, 37760, 38272, 43424, 47840, 49088, 54280, 58880, 60416, 61360, 66560, 70564, 75520, 76544, 86848, 88205, 95680, 98176, 108560, 117760, 122720, 141128, 151040, 153088, 173696, 176410, 191360, 196352, 217120, 245440, 282256, 302080, 306176, 347392, 352820, 382720, 392704, 434240, 490880, 564512, 694784, 705640, 765440, 785408, 868480, 981760, 1129024, 1389568, 1411280, 1530880, 1736960, 1963520, 2258048, 2822560, 3473920, 3927040, 4516096, 5645120, 6947840, 9032192, 11290240, 18064384, 22580480, 45160960, 90321920]

約数ペア:

[(1, 90321920), (2, 45160960), (4, 22580480), (5, 18064384), (8, 11290240), (10, 9032192), (13, 6947840), (16, 5645120), (20, 4516096), (23, 3927040), (26, 3473920), (32, 2822560), (40, 2258048), (46, 1963520), (52, 1736960), (59, 1530880), (64, 1411280), (65, 1389568), (80, 1129024), (92, 981760), (104, 868480), (115, 785408), (118, 765440), (128, 705640), (130, 694784), (160, 564512), (184, 490880), (208, 434240), (230, 392704), (236, 382720), (256, 352820), (260, 347392), (295, 306176), (299, 302080), (320, 282256), (368, 245440), (416, 217120), (460, 196352), (472, 191360), (512, 176410), (520, 173696), (590, 153088), (598, 151040), (640, 141128), (736, 122720), (767, 117760), (832, 108560), (920, 98176), (944, 95680), (1024, 88205), (1040, 86848), (1180, 76544), (1196, 75520), (1280, 70564), (1357, 66560), (1472, 61360), (1495, 60416), (1534, 58880), (1664, 54280), (1840, 49088), (1888, 47840), (2080, 43424), (2360, 38272), (2392, 37760), (2560, 35282), (2714, 33280), (2944, 30680), (2990, 30208), (3068, 29440), (3328, 27140), (3680, 24544), (3776, 23920), (3835, 23552), (4160, 21712), (4720, 19136), (4784, 18880), (5120, 17641), (5428, 16640), (5888, 15340), (5980, 15104), (6136, 14720), (6656, 13570), (6785, 13312), (7360, 12272), (7552, 11960), (7670, 11776), (8320, 10856), (9440, 9568)]