80481815

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{223}}^1$

素因数の和:407

約数の個数: 32

約数和(自身を含む): 106444800

約数和(自身を除く): 25962985

約数列:

[1, 5, 19, 29, 95, 131, 145, 223, 551, 655, 1115, 2489, 2755, 3799, 4237, 6467, 12445, 18995, 21185, 29213, 32335, 72181, 122873, 146065, 360905, 555047, 614365, 847177, 2775235, 4235885, 16096363, 80481815]

約数ペア:

[(1, 80481815), (5, 16096363), (19, 4235885), (29, 2775235), (95, 847177), (131, 614365), (145, 555047), (223, 360905), (551, 146065), (655, 122873), (1115, 72181), (2489, 32335), (2755, 29213), (3799, 21185), (4237, 18995), (6467, 12445)]