157788131320

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{499}}^1\times {\mathrm{255007}}^1$

素因数の和:255548

約数の個数: 64

約数和(自身を含む): 367211520000

約数和(自身を除く): 209423388680

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 499, 620, 998, 1240, 1996, 2495, 3992, 4990, 9980, 15469, 19960, 30938, 61876, 77345, 123752, 154690, 255007, 309380, 510014, 618760, 1020028, 1275035, 2040056, 2550070, 5100140, 7905217, 10200280, 15810434, 31620868, 39526085, 63241736, 79052170, 127248493, 158104340, 254496986, 316208680, 508993972, 636242465, 1017987944, 1272484930, 2544969860, 3944703283, 5089939720, 7889406566, 15778813132, 19723516415, 31557626264, 39447032830, 78894065660, 157788131320]

約数ペア:

[(1, 157788131320), (2, 78894065660), (4, 39447032830), (5, 31557626264), (8, 19723516415), (10, 15778813132), (20, 7889406566), (31, 5089939720), (40, 3944703283), (62, 2544969860), (124, 1272484930), (155, 1017987944), (248, 636242465), (310, 508993972), (499, 316208680), (620, 254496986), (998, 158104340), (1240, 127248493), (1996, 79052170), (2495, 63241736), (3992, 39526085), (4990, 31620868), (9980, 15810434), (15469, 10200280), (19960, 7905217), (30938, 5100140), (61876, 2550070), (77345, 2040056), (123752, 1275035), (154690, 1020028), (255007, 618760), (309380, 510014)]