221306768

素因数分解:

$2^4\times {\mathrm{31}}^2\times {\mathrm{37}}^1\times {\mathrm{389}}^1$

素因数の和:496

約数の個数: 60

約数和(自身を含む): 456204060

約数和(自身を除く): 234897292

約数列:

[1, 2, 4, 8, 16, 31, 37, 62, 74, 124, 148, 248, 296, 389, 496, 592, 778, 961, 1147, 1556, 1922, 2294, 3112, 3844, 4588, 6224, 7688, 9176, 12059, 14393, 15376, 18352, 24118, 28786, 35557, 48236, 57572, 71114, 96472, 115144, 142228, 192944, 230288, 284456, 373829, 446183, 568912, 747658, 892366, 1495316, 1784732, 2990632, 3569464, 5981264, 7138928, 13831673, 27663346, 55326692, 110653384, 221306768]

約数ペア:

[(1, 221306768), (2, 110653384), (4, 55326692), (8, 27663346), (16, 13831673), (31, 7138928), (37, 5981264), (62, 3569464), (74, 2990632), (124, 1784732), (148, 1495316), (248, 892366), (296, 747658), (389, 568912), (496, 446183), (592, 373829), (778, 284456), (961, 230288), (1147, 192944), (1556, 142228), (1922, 115144), (2294, 96472), (3112, 71114), (3844, 57572), (4588, 48236), (6224, 35557), (7688, 28786), (9176, 24118), (12059, 18352), (14393, 15376)]