420481970

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{269}}^1\times {\mathrm{433}}^1$

素因数の和:747

約数の個数: 48

約数和(自身を含む): 803620440

約数和(自身を除く): 383138470

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 269, 361, 433, 538, 722, 866, 1345, 1805, 2165, 2690, 3610, 4330, 5111, 8227, 10222, 16454, 25555, 41135, 51110, 82270, 97109, 116477, 156313, 194218, 232954, 312626, 485545, 582385, 781565, 971090, 1164770, 1563130, 2213063, 4426126, 11065315, 22130630, 42048197, 84096394, 210240985, 420481970]

約数ペア:

[(1, 420481970), (2, 210240985), (5, 84096394), (10, 42048197), (19, 22130630), (38, 11065315), (95, 4426126), (190, 2213063), (269, 1563130), (361, 1164770), (433, 971090), (538, 781565), (722, 582385), (866, 485545), (1345, 312626), (1805, 232954), (2165, 194218), (2690, 156313), (3610, 116477), (4330, 97109), (5111, 82270), (8227, 51110), (10222, 41135), (16454, 25555)]