8130680

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{83}}^1$

素因数の和:204

約数の個数: 64

約数和(自身を含む): 19353600

約数和(自身を除く): 11222920

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 79, 83, 124, 155, 158, 166, 248, 310, 316, 332, 395, 415, 620, 632, 664, 790, 830, 1240, 1580, 1660, 2449, 2573, 3160, 3320, 4898, 5146, 6557, 9796, 10292, 12245, 12865, 13114, 19592, 20584, 24490, 25730, 26228, 32785, 48980, 51460, 52456, 65570, 97960, 102920, 131140, 203267, 262280, 406534, 813068, 1016335, 1626136, 2032670, 4065340, 8130680]

約数ペア:

[(1, 8130680), (2, 4065340), (4, 2032670), (5, 1626136), (8, 1016335), (10, 813068), (20, 406534), (31, 262280), (40, 203267), (62, 131140), (79, 102920), (83, 97960), (124, 65570), (155, 52456), (158, 51460), (166, 48980), (248, 32785), (310, 26228), (316, 25730), (332, 24490), (395, 20584), (415, 19592), (620, 13114), (632, 12865), (664, 12245), (790, 10292), (830, 9796), (1240, 6557), (1580, 5146), (1660, 4898), (2449, 3320), (2573, 3160)]