55664980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{719}}^1$

素因数の和:821

約数の個数: 72

約数和(自身を含む): 137894400

約数和(自身を除く): 82229420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 79, 98, 140, 158, 196, 245, 316, 395, 490, 553, 719, 790, 980, 1106, 1438, 1580, 2212, 2765, 2876, 3595, 3871, 5033, 5530, 7190, 7742, 10066, 11060, 14380, 15484, 19355, 20132, 25165, 35231, 38710, 50330, 56801, 70462, 77420, 100660, 113602, 140924, 176155, 227204, 284005, 352310, 397607, 568010, 704620, 795214, 1136020, 1590428, 1988035, 2783249, 3976070, 5566498, 7952140, 11132996, 13916245, 27832490, 55664980]

約数ペア:

[(1, 55664980), (2, 27832490), (4, 13916245), (5, 11132996), (7, 7952140), (10, 5566498), (14, 3976070), (20, 2783249), (28, 1988035), (35, 1590428), (49, 1136020), (70, 795214), (79, 704620), (98, 568010), (140, 397607), (158, 352310), (196, 284005), (245, 227204), (316, 176155), (395, 140924), (490, 113602), (553, 100660), (719, 77420), (790, 70462), (980, 56801), (1106, 50330), (1438, 38710), (1580, 35231), (2212, 25165), (2765, 20132), (2876, 19355), (3595, 15484), (3871, 14380), (5033, 11060), (5530, 10066), (7190, 7742)]