218562760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{420313}}^1$

素因数の和:420337

約数の個数: 32

約数和(自身を含む): 529595640

約数和(自身を除く): 311032880

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 420313, 840626, 1681252, 2101565, 3362504, 4203130, 5464069, 8406260, 10928138, 16812520, 21856276, 27320345, 43712552, 54640690, 109281380, 218562760]

約数ペア:

[(1, 218562760), (2, 109281380), (4, 54640690), (5, 43712552), (8, 27320345), (10, 21856276), (13, 16812520), (20, 10928138), (26, 8406260), (40, 5464069), (52, 4203130), (65, 3362504), (104, 2101565), (130, 1681252), (260, 840626), (520, 420313)]