638340410

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{211}}^1\times {\mathrm{4261}}^1$

素因数の和:4550

約数の個数: 32

約数和(自身を含む): 1170993024

約数和(自身を除く): 532652614

約数列:

[1, 2, 5, 10, 71, 142, 211, 355, 422, 710, 1055, 2110, 4261, 8522, 14981, 21305, 29962, 42610, 74905, 149810, 302531, 605062, 899071, 1512655, 1798142, 3025310, 4495355, 8990710, 63834041, 127668082, 319170205, 638340410]

約数ペア:

[(1, 638340410), (2, 319170205), (5, 127668082), (10, 63834041), (71, 8990710), (142, 4495355), (211, 3025310), (355, 1798142), (422, 1512655), (710, 899071), (1055, 605062), (2110, 302531), (4261, 149810), (8522, 74905), (14981, 42610), (21305, 29962)]