1993259620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{199}}^1\times {\mathrm{4139}}^1$

素因数の和:4369

約数の個数: 72

約数和(自身を含む): 4625208000

約数和(自身を除く): 2631948380

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 199, 220, 242, 398, 484, 605, 796, 995, 1210, 1990, 2189, 2420, 3980, 4139, 4378, 8278, 8756, 10945, 16556, 20695, 21890, 24079, 41390, 43780, 45529, 48158, 82780, 91058, 96316, 120395, 182116, 227645, 240790, 455290, 481580, 500819, 823661, 910580, 1001638, 1647322, 2003276, 2504095, 3294644, 4118305, 5008190, 8236610, 9060271, 10016380, 16473220, 18120542, 36241084, 45301355, 90602710, 99662981, 181205420, 199325962, 398651924, 498314905, 996629810, 1993259620]

約数ペア:

[(1, 1993259620), (2, 996629810), (4, 498314905), (5, 398651924), (10, 199325962), (11, 181205420), (20, 99662981), (22, 90602710), (44, 45301355), (55, 36241084), (110, 18120542), (121, 16473220), (199, 10016380), (220, 9060271), (242, 8236610), (398, 5008190), (484, 4118305), (605, 3294644), (796, 2504095), (995, 2003276), (1210, 1647322), (1990, 1001638), (2189, 910580), (2420, 823661), (3980, 500819), (4139, 481580), (4378, 455290), (8278, 240790), (8756, 227645), (10945, 182116), (16556, 120395), (20695, 96316), (21890, 91058), (24079, 82780), (41390, 48158), (43780, 45529)]