18157700

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{971}}^1$

素因数の和:1013

約数の個数: 72

約数和(自身を含む): 45559584

約数和(自身を除く): 27401884

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 25, 34, 44, 50, 55, 68, 85, 100, 110, 170, 187, 220, 275, 340, 374, 425, 550, 748, 850, 935, 971, 1100, 1700, 1870, 1942, 3740, 3884, 4675, 4855, 9350, 9710, 10681, 16507, 18700, 19420, 21362, 24275, 33014, 42724, 48550, 53405, 66028, 82535, 97100, 106810, 165070, 181577, 213620, 267025, 330140, 363154, 412675, 534050, 726308, 825350, 907885, 1068100, 1650700, 1815770, 3631540, 4539425, 9078850, 18157700]

約数ペア:

[(1, 18157700), (2, 9078850), (4, 4539425), (5, 3631540), (10, 1815770), (11, 1650700), (17, 1068100), (20, 907885), (22, 825350), (25, 726308), (34, 534050), (44, 412675), (50, 363154), (55, 330140), (68, 267025), (85, 213620), (100, 181577), (110, 165070), (170, 106810), (187, 97100), (220, 82535), (275, 66028), (340, 53405), (374, 48550), (425, 42724), (550, 33014), (748, 24275), (850, 21362), (935, 19420), (971, 18700), (1100, 16507), (1700, 10681), (1870, 9710), (1942, 9350), (3740, 4855), (3884, 4675)]