156978660400

素因数分解:

$2^4\times 5^2\times {\mathrm{4969}}^1\times {\mathrm{78979}}^1$

素因数の和:83966

約数の個数: 60

約数和(自身を含む): 377221906600

約数和(自身を除く): 220243246200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 4969, 9938, 19876, 24845, 39752, 49690, 78979, 79504, 99380, 124225, 157958, 198760, 248450, 315916, 394895, 397520, 496900, 631832, 789790, 993800, 1263664, 1579580, 1974475, 1987600, 3159160, 3948950, 6318320, 7897900, 15795800, 31591600, 392446651, 784893302, 1569786604, 1962233255, 3139573208, 3924466510, 6279146416, 7848933020, 9811166275, 15697866040, 19622332550, 31395732080, 39244665100, 78489330200, 156978660400]

約数ペア:

[(1, 156978660400), (2, 78489330200), (4, 39244665100), (5, 31395732080), (8, 19622332550), (10, 15697866040), (16, 9811166275), (20, 7848933020), (25, 6279146416), (40, 3924466510), (50, 3139573208), (80, 1962233255), (100, 1569786604), (200, 784893302), (400, 392446651), (4969, 31591600), (9938, 15795800), (19876, 7897900), (24845, 6318320), (39752, 3948950), (49690, 3159160), (78979, 1987600), (79504, 1974475), (99380, 1579580), (124225, 1263664), (157958, 993800), (198760, 789790), (248450, 631832), (315916, 496900), (394895, 397520)]