408880990

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{331}}^1\times {\mathrm{2521}}^1$

素因数の和:2873

約数の個数: 48

約数和(自身を含む): 859073904

約数和(自身を除く): 450192914

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 331, 490, 662, 1655, 2317, 2521, 3310, 4634, 5042, 11585, 12605, 16219, 17647, 23170, 25210, 32438, 35294, 81095, 88235, 123529, 162190, 176470, 247058, 617645, 834451, 1235290, 1668902, 4172255, 5841157, 8344510, 11682314, 29205785, 40888099, 58411570, 81776198, 204440495, 408880990]

約数ペア:

[(1, 408880990), (2, 204440495), (5, 81776198), (7, 58411570), (10, 40888099), (14, 29205785), (35, 11682314), (49, 8344510), (70, 5841157), (98, 4172255), (245, 1668902), (331, 1235290), (490, 834451), (662, 617645), (1655, 247058), (2317, 176470), (2521, 162190), (3310, 123529), (4634, 88235), (5042, 81095), (11585, 35294), (12605, 32438), (16219, 25210), (17647, 23170)]