18855180

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{103}}^1\times {\mathrm{113}}^1$

素因数の和:237

約数の個数: 120

約数和(自身を含む): 60252192

約数和(自身を除く): 41397012

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 103, 108, 113, 135, 162, 180, 206, 226, 270, 309, 324, 339, 405, 412, 452, 515, 540, 565, 618, 678, 810, 927, 1017, 1030, 1130, 1236, 1356, 1545, 1620, 1695, 1854, 2034, 2060, 2260, 2781, 3051, 3090, 3390, 3708, 4068, 4635, 5085, 5562, 6102, 6180, 6780, 8343, 9153, 9270, 10170, 11124, 11639, 12204, 13905, 15255, 16686, 18306, 18540, 20340, 23278, 27810, 30510, 33372, 34917, 36612, 41715, 45765, 46556, 55620, 58195, 61020, 69834, 83430, 91530, 104751, 116390, 139668, 166860, 174585, 183060, 209502, 232780, 314253, 349170, 419004, 523755, 628506, 698340, 942759, 1047510, 1257012, 1571265, 1885518, 2095020, 3142530, 3771036, 4713795, 6285060, 9427590, 18855180]

約数ペア:

[(1, 18855180), (2, 9427590), (3, 6285060), (4, 4713795), (5, 3771036), (6, 3142530), (9, 2095020), (10, 1885518), (12, 1571265), (15, 1257012), (18, 1047510), (20, 942759), (27, 698340), (30, 628506), (36, 523755), (45, 419004), (54, 349170), (60, 314253), (81, 232780), (90, 209502), (103, 183060), (108, 174585), (113, 166860), (135, 139668), (162, 116390), (180, 104751), (206, 91530), (226, 83430), (270, 69834), (309, 61020), (324, 58195), (339, 55620), (405, 46556), (412, 45765), (452, 41715), (515, 36612), (540, 34917), (565, 33372), (618, 30510), (678, 27810), (810, 23278), (927, 20340), (1017, 18540), (1030, 18306), (1130, 16686), (1236, 15255), (1356, 13905), (1545, 12204), (1620, 11639), (1695, 11124), (1854, 10170), (2034, 9270), (2060, 9153), (2260, 8343), (2781, 6780), (3051, 6180), (3090, 6102), (3390, 5562), (3708, 5085), (4068, 4635)]