28139080

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41381}}^1$

素因数の和:41409

約数の個数: 32

約数和(自身を含む): 67038840

約数和(自身を除く): 38899760

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 41381, 82762, 165524, 206905, 331048, 413810, 703477, 827620, 1406954, 1655240, 2813908, 3517385, 5627816, 7034770, 14069540, 28139080]

約数ペア:

[(1, 28139080), (2, 14069540), (4, 7034770), (5, 5627816), (8, 3517385), (10, 2813908), (17, 1655240), (20, 1406954), (34, 827620), (40, 703477), (68, 413810), (85, 331048), (136, 206905), (170, 165524), (340, 82762), (680, 41381)]