311389628

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{199}}^1$

素因数の和:339

約数の個数: 72

約数和(自身を含む): 623397600

約数和(自身を除く): 312007972

約数列:

[1, 2, 4, 11, 22, 44, 53, 61, 106, 121, 122, 199, 212, 242, 244, 398, 484, 583, 671, 796, 1166, 1342, 2189, 2332, 2684, 3233, 4378, 6413, 6466, 7381, 8756, 10547, 12139, 12826, 12932, 14762, 21094, 24079, 24278, 25652, 29524, 35563, 42188, 48158, 48556, 71126, 96316, 116017, 133529, 142252, 232034, 267058, 391193, 464068, 534116, 643367, 782386, 1276187, 1286734, 1468819, 1564772, 2552374, 2573468, 2937638, 5104748, 5875276, 7077037, 14154074, 28308148, 77847407, 155694814, 311389628]

約数ペア:

[(1, 311389628), (2, 155694814), (4, 77847407), (11, 28308148), (22, 14154074), (44, 7077037), (53, 5875276), (61, 5104748), (106, 2937638), (121, 2573468), (122, 2552374), (199, 1564772), (212, 1468819), (242, 1286734), (244, 1276187), (398, 782386), (484, 643367), (583, 534116), (671, 464068), (796, 391193), (1166, 267058), (1342, 232034), (2189, 142252), (2332, 133529), (2684, 116017), (3233, 96316), (4378, 71126), (6413, 48556), (6466, 48158), (7381, 42188), (8756, 35563), (10547, 29524), (12139, 25652), (12826, 24278), (12932, 24079), (14762, 21094)]