90818720

素因数分解:

$2^5\times 5^1\times {\mathrm{23}}^2\times {\mathrm{29}}^1\times {\mathrm{37}}^1$

素因数の和:127

約数の個数: 144

約数和(自身を含む): 238298760

約数和(自身を除く): 147480040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 29, 32, 37, 40, 46, 58, 74, 80, 92, 115, 116, 145, 148, 160, 184, 185, 230, 232, 290, 296, 368, 370, 460, 464, 529, 580, 592, 667, 736, 740, 851, 920, 928, 1058, 1073, 1160, 1184, 1334, 1480, 1702, 1840, 2116, 2146, 2320, 2645, 2668, 2960, 3335, 3404, 3680, 4232, 4255, 4292, 4640, 5290, 5336, 5365, 5920, 6670, 6808, 8464, 8510, 8584, 10580, 10672, 10730, 13340, 13616, 15341, 16928, 17020, 17168, 19573, 21160, 21344, 21460, 24679, 26680, 27232, 30682, 34040, 34336, 39146, 42320, 42920, 49358, 53360, 61364, 68080, 76705, 78292, 84640, 85840, 97865, 98716, 106720, 122728, 123395, 136160, 153410, 156584, 171680, 195730, 197432, 245456, 246790, 306820, 313168, 391460, 394864, 490912, 493580, 567617, 613640, 626336, 782920, 789728, 987160, 1135234, 1227280, 1565840, 1974320, 2270468, 2454560, 2838085, 3131680, 3948640, 4540936, 5676170, 9081872, 11352340, 18163744, 22704680, 45409360, 90818720]

約数ペア:

[(1, 90818720), (2, 45409360), (4, 22704680), (5, 18163744), (8, 11352340), (10, 9081872), (16, 5676170), (20, 4540936), (23, 3948640), (29, 3131680), (32, 2838085), (37, 2454560), (40, 2270468), (46, 1974320), (58, 1565840), (74, 1227280), (80, 1135234), (92, 987160), (115, 789728), (116, 782920), (145, 626336), (148, 613640), (160, 567617), (184, 493580), (185, 490912), (230, 394864), (232, 391460), (290, 313168), (296, 306820), (368, 246790), (370, 245456), (460, 197432), (464, 195730), (529, 171680), (580, 156584), (592, 153410), (667, 136160), (736, 123395), (740, 122728), (851, 106720), (920, 98716), (928, 97865), (1058, 85840), (1073, 84640), (1160, 78292), (1184, 76705), (1334, 68080), (1480, 61364), (1702, 53360), (1840, 49358), (2116, 42920), (2146, 42320), (2320, 39146), (2645, 34336), (2668, 34040), (2960, 30682), (3335, 27232), (3404, 26680), (3680, 24679), (4232, 21460), (4255, 21344), (4292, 21160), (4640, 19573), (5290, 17168), (5336, 17020), (5365, 16928), (5920, 15341), (6670, 13616), (6808, 13340), (8464, 10730), (8510, 10672), (8584, 10580)]