391815920

素因数分解:

$2^4\times 5^1\times {\mathrm{937}}^1\times {\mathrm{5227}}^1$

素因数の和:6177

約数の個数: 40

約数和(自身を含む): 912118704

約数和(自身を除く): 520302784

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 937, 1874, 3748, 4685, 5227, 7496, 9370, 10454, 14992, 18740, 20908, 26135, 37480, 41816, 52270, 74960, 83632, 104540, 209080, 418160, 4897699, 9795398, 19590796, 24488495, 39181592, 48976990, 78363184, 97953980, 195907960, 391815920]

約数ペア:

[(1, 391815920), (2, 195907960), (4, 97953980), (5, 78363184), (8, 48976990), (10, 39181592), (16, 24488495), (20, 19590796), (40, 9795398), (80, 4897699), (937, 418160), (1874, 209080), (3748, 104540), (4685, 83632), (5227, 74960), (7496, 52270), (9370, 41816), (10454, 37480), (14992, 26135), (18740, 20908)]