12972375

素因数分解:

$3^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{887}}^1$

素因数の和:921

約数の個数: 48

約数和(自身を含む): 25212096

約数和(自身を除く): 12239721

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 45, 65, 75, 117, 125, 195, 225, 325, 375, 585, 887, 975, 1125, 1625, 2661, 2925, 4435, 4875, 7983, 11531, 13305, 14625, 22175, 34593, 39915, 57655, 66525, 103779, 110875, 172965, 199575, 288275, 332625, 518895, 864825, 997875, 1441375, 2594475, 4324125, 12972375]

約数ペア:

[(1, 12972375), (3, 4324125), (5, 2594475), (9, 1441375), (13, 997875), (15, 864825), (25, 518895), (39, 332625), (45, 288275), (65, 199575), (75, 172965), (117, 110875), (125, 103779), (195, 66525), (225, 57655), (325, 39915), (375, 34593), (585, 22175), (887, 14625), (975, 13305), (1125, 11531), (1625, 7983), (2661, 4875), (2925, 4435)]