20271547320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{521}}^1\times {\mathrm{19073}}^1$

素因数の和:19625

約数の個数: 128

約数和(自身を含む): 64518949440

約数和(自身を除く): 44247402120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 170, 204, 255, 340, 408, 510, 521, 680, 1020, 1042, 1563, 2040, 2084, 2605, 3126, 4168, 5210, 6252, 7815, 8857, 10420, 12504, 15630, 17714, 19073, 20840, 26571, 31260, 35428, 38146, 44285, 53142, 57219, 62520, 70856, 76292, 88570, 95365, 106284, 114438, 132855, 152584, 177140, 190730, 212568, 228876, 265710, 286095, 324241, 354280, 381460, 457752, 531420, 572190, 648482, 762920, 972723, 1062840, 1144380, 1296964, 1621205, 1945446, 2288760, 2593928, 3242410, 3890892, 4863615, 6484820, 7781784, 9727230, 9937033, 12969640, 19454460, 19874066, 29811099, 38908920, 39748132, 49685165, 59622198, 79496264, 99370330, 119244396, 149055495, 168929561, 198740660, 238488792, 298110990, 337859122, 397481320, 506788683, 596221980, 675718244, 844647805, 1013577366, 1192443960, 1351436488, 1689295610, 2027154732, 2533943415, 3378591220, 4054309464, 5067886830, 6757182440, 10135773660, 20271547320]

約数ペア:

[(1, 20271547320), (2, 10135773660), (3, 6757182440), (4, 5067886830), (5, 4054309464), (6, 3378591220), (8, 2533943415), (10, 2027154732), (12, 1689295610), (15, 1351436488), (17, 1192443960), (20, 1013577366), (24, 844647805), (30, 675718244), (34, 596221980), (40, 506788683), (51, 397481320), (60, 337859122), (68, 298110990), (85, 238488792), (102, 198740660), (120, 168929561), (136, 149055495), (170, 119244396), (204, 99370330), (255, 79496264), (340, 59622198), (408, 49685165), (510, 39748132), (521, 38908920), (680, 29811099), (1020, 19874066), (1042, 19454460), (1563, 12969640), (2040, 9937033), (2084, 9727230), (2605, 7781784), (3126, 6484820), (4168, 4863615), (5210, 3890892), (6252, 3242410), (7815, 2593928), (8857, 2288760), (10420, 1945446), (12504, 1621205), (15630, 1296964), (17714, 1144380), (19073, 1062840), (20840, 972723), (26571, 762920), (31260, 648482), (35428, 572190), (38146, 531420), (44285, 457752), (53142, 381460), (57219, 354280), (62520, 324241), (70856, 286095), (76292, 265710), (88570, 228876), (95365, 212568), (106284, 190730), (114438, 177140), (132855, 152584)]