28564120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{337}}^1$

素因数の和:524

約数の個数: 64

約数和(自身を含む): 69844320

約数和(自身を除く): 41280200

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 163, 260, 326, 337, 520, 652, 674, 815, 1304, 1348, 1630, 1685, 2119, 2696, 3260, 3370, 4238, 4381, 6520, 6740, 8476, 8762, 10595, 13480, 16952, 17524, 21190, 21905, 35048, 42380, 43810, 54931, 84760, 87620, 109862, 175240, 219724, 274655, 439448, 549310, 714103, 1098620, 1428206, 2197240, 2856412, 3570515, 5712824, 7141030, 14282060, 28564120]

約数ペア:

[(1, 28564120), (2, 14282060), (4, 7141030), (5, 5712824), (8, 3570515), (10, 2856412), (13, 2197240), (20, 1428206), (26, 1098620), (40, 714103), (52, 549310), (65, 439448), (104, 274655), (130, 219724), (163, 175240), (260, 109862), (326, 87620), (337, 84760), (520, 54931), (652, 43810), (674, 42380), (815, 35048), (1304, 21905), (1348, 21190), (1630, 17524), (1685, 16952), (2119, 13480), (2696, 10595), (3260, 8762), (3370, 8476), (4238, 6740), (4381, 6520)]