72405430

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{181}}^1\times {\mathrm{367}}^1$

素因数の和:664

約数の個数: 32

約数和(自身を含む): 132612480

約数和(自身を除く): 60207050

約数列:

[1, 2, 5, 10, 109, 181, 218, 362, 367, 545, 734, 905, 1090, 1810, 1835, 3670, 19729, 39458, 40003, 66427, 80006, 98645, 132854, 197290, 200015, 332135, 400030, 664270, 7240543, 14481086, 36202715, 72405430]

約数ペア:

[(1, 72405430), (2, 36202715), (5, 14481086), (10, 7240543), (109, 664270), (181, 400030), (218, 332135), (362, 200015), (367, 197290), (545, 132854), (734, 98645), (905, 80006), (1090, 66427), (1810, 40003), (1835, 39458), (3670, 19729)]