619201420

素因数分解:

$2^2\times 5^1\times {\mathrm{1663}}^1\times {\mathrm{18617}}^1$

素因数の和:20289

約数の個数: 24

約数和(自身を含む): 1301174784

約数和(自身を除く): 681973364

約数列:

[1, 2, 4, 5, 10, 20, 1663, 3326, 6652, 8315, 16630, 18617, 33260, 37234, 74468, 93085, 186170, 372340, 30960071, 61920142, 123840284, 154800355, 309600710, 619201420]

約数ペア:

[(1, 619201420), (2, 309600710), (4, 154800355), (5, 123840284), (10, 61920142), (20, 30960071), (1663, 372340), (3326, 186170), (6652, 93085), (8315, 74468), (16630, 37234), (18617, 33260)]