72883820

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{163}}^1\times {\mathrm{283}}^1$

素因数の和:534

約数の個数: 48

約数和(自身を含む): 156495360

約数和(自身を除く): 83611540

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 163, 283, 316, 326, 395, 566, 652, 790, 815, 1132, 1415, 1580, 1630, 2830, 3260, 5660, 12877, 22357, 25754, 44714, 46129, 51508, 64385, 89428, 92258, 111785, 128770, 184516, 223570, 230645, 257540, 447140, 461290, 922580, 3644191, 7288382, 14576764, 18220955, 36441910, 72883820]

約数ペア:

[(1, 72883820), (2, 36441910), (4, 18220955), (5, 14576764), (10, 7288382), (20, 3644191), (79, 922580), (158, 461290), (163, 447140), (283, 257540), (316, 230645), (326, 223570), (395, 184516), (566, 128770), (652, 111785), (790, 92258), (815, 89428), (1132, 64385), (1415, 51508), (1580, 46129), (1630, 44714), (2830, 25754), (3260, 22357), (5660, 12877)]