1813827980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{421}}^1\times {\mathrm{6949}}^1$

素因数の和:7410

約数の個数: 48

約数和(自身を含む): 3941817600

約数和(自身を除く): 2127989620

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 421, 620, 842, 1684, 2105, 4210, 6949, 8420, 13051, 13898, 26102, 27796, 34745, 52204, 65255, 69490, 130510, 138980, 215419, 261020, 430838, 861676, 1077095, 2154190, 2925529, 4308380, 5851058, 11702116, 14627645, 29255290, 58510580, 90691399, 181382798, 362765596, 453456995, 906913990, 1813827980]

約数ペア:

[(1, 1813827980), (2, 906913990), (4, 453456995), (5, 362765596), (10, 181382798), (20, 90691399), (31, 58510580), (62, 29255290), (124, 14627645), (155, 11702116), (310, 5851058), (421, 4308380), (620, 2925529), (842, 2154190), (1684, 1077095), (2105, 861676), (4210, 430838), (6949, 261020), (8420, 215419), (13051, 138980), (13898, 130510), (26102, 69490), (27796, 65255), (34745, 52204)]