639730

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1$

素因数の和:83

約数の個数: 64

約数和(自身を含む): 1532160

約数和(自身を除く): 892430

約数列:

[1, 2, 5, 7, 10, 13, 14, 19, 26, 35, 37, 38, 65, 70, 74, 91, 95, 130, 133, 182, 185, 190, 247, 259, 266, 370, 455, 481, 494, 518, 665, 703, 910, 962, 1235, 1295, 1330, 1406, 1729, 2405, 2470, 2590, 3367, 3458, 3515, 4810, 4921, 6734, 7030, 8645, 9139, 9842, 16835, 17290, 18278, 24605, 33670, 45695, 49210, 63973, 91390, 127946, 319865, 639730]

約数ペア:

[(1, 639730), (2, 319865), (5, 127946), (7, 91390), (10, 63973), (13, 49210), (14, 45695), (19, 33670), (26, 24605), (35, 18278), (37, 17290), (38, 16835), (65, 9842), (70, 9139), (74, 8645), (91, 7030), (95, 6734), (130, 4921), (133, 4810), (182, 3515), (185, 3458), (190, 3367), (247, 2590), (259, 2470), (266, 2405), (370, 1729), (455, 1406), (481, 1330), (494, 1295), (518, 1235), (665, 962), (703, 910)]