15779775

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{617}}^1$

素因数の和:672

約数の個数: 48

約数和(自身を含む): 29426688

約数和(自身を除く): 13646913

約数列:

[1, 3, 5, 11, 15, 25, 31, 33, 55, 75, 93, 155, 165, 275, 341, 465, 617, 775, 825, 1023, 1705, 1851, 2325, 3085, 5115, 6787, 8525, 9255, 15425, 19127, 20361, 25575, 33935, 46275, 57381, 95635, 101805, 169675, 210397, 286905, 478175, 509025, 631191, 1051985, 1434525, 3155955, 5259925, 15779775]

約数ペア:

[(1, 15779775), (3, 5259925), (5, 3155955), (11, 1434525), (15, 1051985), (25, 631191), (31, 509025), (33, 478175), (55, 286905), (75, 210397), (93, 169675), (155, 101805), (165, 95635), (275, 57381), (341, 46275), (465, 33935), (617, 25575), (775, 20361), (825, 19127), (1023, 15425), (1705, 9255), (1851, 8525), (2325, 6787), (3085, 5115)]