213830420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{628913}}^1$

素因数の和:628939

約数の個数: 24

約数和(自身を含む): 475458984

約数和(自身を除く): 261628564

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 628913, 1257826, 2515652, 3144565, 6289130, 10691521, 12578260, 21383042, 42766084, 53457605, 106915210, 213830420]

約数ペア:

[(1, 213830420), (2, 106915210), (4, 53457605), (5, 42766084), (10, 21383042), (17, 12578260), (20, 10691521), (34, 6289130), (68, 3144565), (85, 2515652), (170, 1257826), (340, 628913)]