128398956

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{21529}}^1$

素因数の和:21614

約数の個数: 48

約数和(自身を含む): 347235840

約数和(自身を除く): 218836884

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 71, 84, 142, 213, 284, 426, 497, 852, 994, 1491, 1988, 2982, 5964, 21529, 43058, 64587, 86116, 129174, 150703, 258348, 301406, 452109, 602812, 904218, 1528559, 1808436, 3057118, 4585677, 6114236, 9171354, 10699913, 18342708, 21399826, 32099739, 42799652, 64199478, 128398956]

約数ペア:

[(1, 128398956), (2, 64199478), (3, 42799652), (4, 32099739), (6, 21399826), (7, 18342708), (12, 10699913), (14, 9171354), (21, 6114236), (28, 4585677), (42, 3057118), (71, 1808436), (84, 1528559), (142, 904218), (213, 602812), (284, 452109), (426, 301406), (497, 258348), (852, 150703), (994, 129174), (1491, 86116), (1988, 64587), (2982, 43058), (5964, 21529)]