31886920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{53}}^1\times {\mathrm{89}}^1$

素因数の和:179

約数の個数: 96

約数和(自身を含む): 80044200

約数和(自身を除く): 48157280

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 53, 65, 89, 104, 106, 130, 169, 178, 212, 260, 265, 338, 356, 424, 445, 520, 530, 676, 689, 712, 845, 890, 1060, 1157, 1352, 1378, 1690, 1780, 2120, 2314, 2756, 3380, 3445, 3560, 4628, 4717, 5512, 5785, 6760, 6890, 8957, 9256, 9434, 11570, 13780, 15041, 17914, 18868, 23140, 23585, 27560, 30082, 35828, 37736, 44785, 46280, 47170, 60164, 61321, 71656, 75205, 89570, 94340, 120328, 122642, 150410, 179140, 188680, 245284, 300820, 306605, 358280, 490568, 601640, 613210, 797173, 1226420, 1594346, 2452840, 3188692, 3985865, 6377384, 7971730, 15943460, 31886920]

約数ペア:

[(1, 31886920), (2, 15943460), (4, 7971730), (5, 6377384), (8, 3985865), (10, 3188692), (13, 2452840), (20, 1594346), (26, 1226420), (40, 797173), (52, 613210), (53, 601640), (65, 490568), (89, 358280), (104, 306605), (106, 300820), (130, 245284), (169, 188680), (178, 179140), (212, 150410), (260, 122642), (265, 120328), (338, 94340), (356, 89570), (424, 75205), (445, 71656), (520, 61321), (530, 60164), (676, 47170), (689, 46280), (712, 44785), (845, 37736), (890, 35828), (1060, 30082), (1157, 27560), (1352, 23585), (1378, 23140), (1690, 18868), (1780, 17914), (2120, 15041), (2314, 13780), (2756, 11570), (3380, 9434), (3445, 9256), (3560, 8957), (4628, 6890), (4717, 6760), (5512, 5785)]