74821960

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{131}}^2$

素因数の和:382

約数の個数: 48

約数和(自身を含む): 171200700

約数和(自身を除く): 96378740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 131, 218, 262, 436, 524, 545, 655, 872, 1048, 1090, 1310, 2180, 2620, 4360, 5240, 14279, 17161, 28558, 34322, 57116, 68644, 71395, 85805, 114232, 137288, 142790, 171610, 285580, 343220, 571160, 686440, 1870549, 3741098, 7482196, 9352745, 14964392, 18705490, 37410980, 74821960]

約数ペア:

[(1, 74821960), (2, 37410980), (4, 18705490), (5, 14964392), (8, 9352745), (10, 7482196), (20, 3741098), (40, 1870549), (109, 686440), (131, 571160), (218, 343220), (262, 285580), (436, 171610), (524, 142790), (545, 137288), (655, 114232), (872, 85805), (1048, 71395), (1090, 68644), (1310, 57116), (2180, 34322), (2620, 28558), (4360, 17161), (5240, 14279)]