84970820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{4889}}^1$

素因数の和:4988

約数の個数: 48

約数和(自身を含む): 197164800

約数和(自身を除く): 112193980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 79, 110, 158, 220, 316, 395, 790, 869, 1580, 1738, 3476, 4345, 4889, 8690, 9778, 17380, 19556, 24445, 48890, 53779, 97780, 107558, 215116, 268895, 386231, 537790, 772462, 1075580, 1544924, 1931155, 3862310, 4248541, 7724620, 8497082, 16994164, 21242705, 42485410, 84970820]

約数ペア:

[(1, 84970820), (2, 42485410), (4, 21242705), (5, 16994164), (10, 8497082), (11, 7724620), (20, 4248541), (22, 3862310), (44, 1931155), (55, 1544924), (79, 1075580), (110, 772462), (158, 537790), (220, 386231), (316, 268895), (395, 215116), (790, 107558), (869, 97780), (1580, 53779), (1738, 48890), (3476, 24445), (4345, 19556), (4889, 17380), (8690, 9778)]