20469992

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{983}}^1$

素因数の和:1145

約数の個数: 32

約数和(自身を含む): 40737600

約数和(自身を除く): 20267608

約数列:

[1, 2, 4, 8, 19, 38, 76, 137, 152, 274, 548, 983, 1096, 1966, 2603, 3932, 5206, 7864, 10412, 18677, 20824, 37354, 74708, 134671, 149416, 269342, 538684, 1077368, 2558749, 5117498, 10234996, 20469992]

約数ペア:

[(1, 20469992), (2, 10234996), (4, 5117498), (8, 2558749), (19, 1077368), (38, 538684), (76, 269342), (137, 149416), (152, 134671), (274, 74708), (548, 37354), (983, 20824), (1096, 18677), (1966, 10412), (2603, 7864), (3932, 5206)]