218702990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1\times {\mathrm{199}}^1$

素因数の和:417

約数の個数: 64

約数和(自身を含む): 440294400

約数和(自身を除く): 221591410

約数列:

[1, 2, 5, 10, 11, 22, 55, 97, 103, 110, 194, 199, 206, 398, 485, 515, 970, 995, 1030, 1067, 1133, 1990, 2134, 2189, 2266, 4378, 5335, 5665, 9991, 10670, 10945, 11330, 19303, 19982, 20497, 21890, 38606, 40994, 49955, 96515, 99910, 102485, 109901, 193030, 204970, 212333, 219802, 225467, 424666, 450934, 549505, 1061665, 1099010, 1127335, 1988209, 2123330, 2254670, 3976418, 9941045, 19882090, 21870299, 43740598, 109351495, 218702990]

約数ペア:

[(1, 218702990), (2, 109351495), (5, 43740598), (10, 21870299), (11, 19882090), (22, 9941045), (55, 3976418), (97, 2254670), (103, 2123330), (110, 1988209), (194, 1127335), (199, 1099010), (206, 1061665), (398, 549505), (485, 450934), (515, 424666), (970, 225467), (995, 219802), (1030, 212333), (1067, 204970), (1133, 193030), (1990, 109901), (2134, 102485), (2189, 99910), (2266, 96515), (4378, 49955), (5335, 40994), (5665, 38606), (9991, 21890), (10670, 20497), (10945, 19982), (11330, 19303)]