17829980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{6703}}^1$

素因数の和:6738

約数の個数: 48

約数和(自身を含む): 45050880

約数和(自身を除く): 27220900

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 665, 1330, 2660, 6703, 13406, 26812, 33515, 46921, 67030, 93842, 127357, 134060, 187684, 234605, 254714, 469210, 509428, 636785, 891499, 938420, 1273570, 1782998, 2547140, 3565996, 4457495, 8914990, 17829980]

約数ペア:

[(1, 17829980), (2, 8914990), (4, 4457495), (5, 3565996), (7, 2547140), (10, 1782998), (14, 1273570), (19, 938420), (20, 891499), (28, 636785), (35, 509428), (38, 469210), (70, 254714), (76, 234605), (95, 187684), (133, 134060), (140, 127357), (190, 93842), (266, 67030), (380, 46921), (532, 33515), (665, 26812), (1330, 13406), (2660, 6703)]