78863240

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{32321}}^1$

素因数の和:32393

約数の個数: 32

約数和(自身を含む): 180356760

約数和(自身を除く): 101493520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 32321, 64642, 129284, 161605, 258568, 323210, 646420, 1292840, 1971581, 3943162, 7886324, 9857905, 15772648, 19715810, 39431620, 78863240]

約数ペア:

[(1, 78863240), (2, 39431620), (4, 19715810), (5, 15772648), (8, 9857905), (10, 7886324), (20, 3943162), (40, 1971581), (61, 1292840), (122, 646420), (244, 323210), (305, 258568), (488, 161605), (610, 129284), (1220, 64642), (2440, 32321)]