81195400

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{167}}^1$

素因数の和:224

約数の個数: 192

約数和(自身を含む): 236234880

約数和(自身を除く): 155039480

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 17, 20, 22, 25, 26, 34, 40, 44, 50, 52, 55, 65, 68, 85, 88, 100, 104, 110, 130, 136, 143, 167, 170, 187, 200, 220, 221, 260, 275, 286, 325, 334, 340, 374, 425, 440, 442, 520, 550, 572, 650, 668, 680, 715, 748, 835, 850, 884, 935, 1100, 1105, 1144, 1300, 1336, 1430, 1496, 1670, 1700, 1768, 1837, 1870, 2171, 2200, 2210, 2431, 2600, 2839, 2860, 3340, 3400, 3575, 3674, 3740, 4175, 4342, 4420, 4675, 4862, 5525, 5678, 5720, 6680, 7150, 7348, 7480, 8350, 8684, 8840, 9185, 9350, 9724, 10855, 11050, 11356, 12155, 14195, 14300, 14696, 16700, 17368, 18370, 18700, 19448, 21710, 22100, 22712, 23881, 24310, 28390, 28600, 31229, 33400, 36740, 36907, 37400, 43420, 44200, 45925, 47762, 48620, 54275, 56780, 60775, 62458, 70975, 73480, 73814, 86840, 91850, 95524, 97240, 108550, 113560, 119405, 121550, 124916, 141950, 147628, 156145, 183700, 184535, 191048, 217100, 238810, 243100, 249832, 283900, 295256, 312290, 367400, 369070, 405977, 434200, 477620, 486200, 567800, 597025, 624580, 738140, 780725, 811954, 922675, 955240, 1194050, 1249160, 1476280, 1561450, 1623908, 1845350, 2029885, 2388100, 3122900, 3247816, 3690700, 4059770, 4776200, 6245800, 7381400, 8119540, 10149425, 16239080, 20298850, 40597700, 81195400]

約数ペア:

[(1, 81195400), (2, 40597700), (4, 20298850), (5, 16239080), (8, 10149425), (10, 8119540), (11, 7381400), (13, 6245800), (17, 4776200), (20, 4059770), (22, 3690700), (25, 3247816), (26, 3122900), (34, 2388100), (40, 2029885), (44, 1845350), (50, 1623908), (52, 1561450), (55, 1476280), (65, 1249160), (68, 1194050), (85, 955240), (88, 922675), (100, 811954), (104, 780725), (110, 738140), (130, 624580), (136, 597025), (143, 567800), (167, 486200), (170, 477620), (187, 434200), (200, 405977), (220, 369070), (221, 367400), (260, 312290), (275, 295256), (286, 283900), (325, 249832), (334, 243100), (340, 238810), (374, 217100), (425, 191048), (440, 184535), (442, 183700), (520, 156145), (550, 147628), (572, 141950), (650, 124916), (668, 121550), (680, 119405), (715, 113560), (748, 108550), (835, 97240), (850, 95524), (884, 91850), (935, 86840), (1100, 73814), (1105, 73480), (1144, 70975), (1300, 62458), (1336, 60775), (1430, 56780), (1496, 54275), (1670, 48620), (1700, 47762), (1768, 45925), (1837, 44200), (1870, 43420), (2171, 37400), (2200, 36907), (2210, 36740), (2431, 33400), (2600, 31229), (2839, 28600), (2860, 28390), (3340, 24310), (3400, 23881), (3575, 22712), (3674, 22100), (3740, 21710), (4175, 19448), (4342, 18700), (4420, 18370), (4675, 17368), (4862, 16700), (5525, 14696), (5678, 14300), (5720, 14195), (6680, 12155), (7150, 11356), (7348, 11050), (7480, 10855), (8350, 9724), (8684, 9350), (8840, 9185)]