321277490

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1\times {\mathrm{4129}}^1$

素因数の和:4418

約数の個数: 32

約数和(自身を含む): 599477760

約数和(自身を除く): 278200270

約数列:

[1, 2, 5, 10, 31, 62, 155, 251, 310, 502, 1255, 2510, 4129, 7781, 8258, 15562, 20645, 38905, 41290, 77810, 127999, 255998, 639995, 1036379, 1279990, 2072758, 5181895, 10363790, 32127749, 64255498, 160638745, 321277490]

約数ペア:

[(1, 321277490), (2, 160638745), (5, 64255498), (10, 32127749), (31, 10363790), (62, 5181895), (155, 2072758), (251, 1279990), (310, 1036379), (502, 639995), (1255, 255998), (2510, 127999), (4129, 77810), (7781, 41290), (8258, 38905), (15562, 20645)]