45281420

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{25439}}^1$

素因数の和:25537

約数の個数: 24

約数和(自身を含む): 96163200

約数和(自身を除く): 50881780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 25439, 50878, 101756, 127195, 254390, 508780, 2264071, 4528142, 9056284, 11320355, 22640710, 45281420]

約数ペア:

[(1, 45281420), (2, 22640710), (4, 11320355), (5, 9056284), (10, 4528142), (20, 2264071), (89, 508780), (178, 254390), (356, 127195), (445, 101756), (890, 50878), (1780, 25439)]