210923420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{620363}}^1$

素因数の和:620389

約数の個数: 24

約数和(自身を含む): 468995184

約数和(自身を除く): 258071764

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 620363, 1240726, 2481452, 3101815, 6203630, 10546171, 12407260, 21092342, 42184684, 52730855, 105461710, 210923420]

約数ペア:

[(1, 210923420), (2, 105461710), (4, 52730855), (5, 42184684), (10, 21092342), (17, 12407260), (20, 10546171), (34, 6203630), (68, 3101815), (85, 2481452), (170, 1240726), (340, 620363)]