12993525

素因数分解:

$3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1$

素因数の和:155

約数の個数: 72

約数和(自身を含む): 25534080

約数和(自身を除く): 12540555

約数列:

[1, 3, 5, 9, 15, 17, 25, 43, 45, 51, 75, 79, 85, 129, 153, 215, 225, 237, 255, 387, 395, 425, 645, 711, 731, 765, 1075, 1185, 1275, 1343, 1935, 1975, 2193, 3225, 3397, 3555, 3655, 3825, 4029, 5925, 6579, 6715, 9675, 10191, 10965, 12087, 16985, 17775, 18275, 20145, 30573, 32895, 33575, 50955, 54825, 57749, 60435, 84925, 100725, 152865, 164475, 173247, 254775, 288745, 302175, 519741, 764325, 866235, 1443725, 2598705, 4331175, 12993525]

約数ペア:

[(1, 12993525), (3, 4331175), (5, 2598705), (9, 1443725), (15, 866235), (17, 764325), (25, 519741), (43, 302175), (45, 288745), (51, 254775), (75, 173247), (79, 164475), (85, 152865), (129, 100725), (153, 84925), (215, 60435), (225, 57749), (237, 54825), (255, 50955), (387, 33575), (395, 32895), (425, 30573), (645, 20145), (711, 18275), (731, 17775), (765, 16985), (1075, 12087), (1185, 10965), (1275, 10191), (1343, 9675), (1935, 6715), (1975, 6579), (2193, 5925), (3225, 4029), (3397, 3825), (3555, 3655)]