80521525

素因数分解:

$5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{397}}^1$

素因数の和:494

約数の個数: 48

約数和(自身を含む): 122392960

約数和(自身を除く): 41871435

約数列:

[1, 5, 7, 19, 25, 35, 61, 95, 133, 175, 305, 397, 427, 475, 665, 1159, 1525, 1985, 2135, 2779, 3325, 5795, 7543, 8113, 9925, 10675, 13895, 24217, 28975, 37715, 40565, 52801, 69475, 121085, 169519, 188575, 202825, 264005, 460123, 605425, 847595, 1320025, 2300615, 3220861, 4237975, 11503075, 16104305, 80521525]

約数ペア:

[(1, 80521525), (5, 16104305), (7, 11503075), (19, 4237975), (25, 3220861), (35, 2300615), (61, 1320025), (95, 847595), (133, 605425), (175, 460123), (305, 264005), (397, 202825), (427, 188575), (475, 169519), (665, 121085), (1159, 69475), (1525, 52801), (1985, 40565), (2135, 37715), (2779, 28975), (3325, 24217), (5795, 13895), (7543, 10675), (8113, 9925)]