39470980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{241}}^1\times {\mathrm{431}}^1$

素因数の和:700

約数の個数: 48

約数和(自身を含む): 87816960

約数和(自身を除く): 48345980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 241, 380, 431, 482, 862, 964, 1205, 1724, 2155, 2410, 4310, 4579, 4820, 8189, 8620, 9158, 16378, 18316, 22895, 32756, 40945, 45790, 81890, 91580, 103871, 163780, 207742, 415484, 519355, 1038710, 1973549, 2077420, 3947098, 7894196, 9867745, 19735490, 39470980]

約数ペア:

[(1, 39470980), (2, 19735490), (4, 9867745), (5, 7894196), (10, 3947098), (19, 2077420), (20, 1973549), (38, 1038710), (76, 519355), (95, 415484), (190, 207742), (241, 163780), (380, 103871), (431, 91580), (482, 81890), (862, 45790), (964, 40945), (1205, 32756), (1724, 22895), (2155, 18316), (2410, 16378), (4310, 9158), (4579, 8620), (4820, 8189)]