217620460

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{149}}^1\times {\mathrm{709}}^1$

素因数の和:970

約数の個数: 48

約数和(自身を含む): 465192000

約数和(自身を除く): 247571540

約数列:

[1, 2, 4, 5, 10, 20, 103, 149, 206, 298, 412, 515, 596, 709, 745, 1030, 1418, 1490, 2060, 2836, 2980, 3545, 7090, 14180, 15347, 30694, 61388, 73027, 76735, 105641, 146054, 153470, 211282, 292108, 306940, 365135, 422564, 528205, 730270, 1056410, 1460540, 2112820, 10881023, 21762046, 43524092, 54405115, 108810230, 217620460]

約数ペア:

[(1, 217620460), (2, 108810230), (4, 54405115), (5, 43524092), (10, 21762046), (20, 10881023), (103, 2112820), (149, 1460540), (206, 1056410), (298, 730270), (412, 528205), (515, 422564), (596, 365135), (709, 306940), (745, 292108), (1030, 211282), (1418, 153470), (1490, 146054), (2060, 105641), (2836, 76735), (2980, 73027), (3545, 61388), (7090, 30694), (14180, 15347)]