385178980

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{223}}^1\times {\mathrm{1289}}^1$

素因数の和:1588

約数の個数: 48

約数和(自身を含む): 825269760

約数和(自身を除く): 440090780

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 223, 268, 335, 446, 670, 892, 1115, 1289, 1340, 2230, 2578, 4460, 5156, 6445, 12890, 14941, 25780, 29882, 59764, 74705, 86363, 149410, 172726, 287447, 298820, 345452, 431815, 574894, 863630, 1149788, 1437235, 1727260, 2874470, 5748940, 19258949, 38517898, 77035796, 96294745, 192589490, 385178980]

約数ペア:

[(1, 385178980), (2, 192589490), (4, 96294745), (5, 77035796), (10, 38517898), (20, 19258949), (67, 5748940), (134, 2874470), (223, 1727260), (268, 1437235), (335, 1149788), (446, 863630), (670, 574894), (892, 431815), (1115, 345452), (1289, 298820), (1340, 287447), (2230, 172726), (2578, 149410), (4460, 86363), (5156, 74705), (6445, 59764), (12890, 29882), (14941, 25780)]