18610120

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{521}}^1$

素因数の和:598

約数の個数: 64

約数和(自身を含む): 45100800

約数和(自身を除く): 26490680

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 47, 76, 94, 95, 152, 188, 190, 235, 376, 380, 470, 521, 760, 893, 940, 1042, 1786, 1880, 2084, 2605, 3572, 4168, 4465, 5210, 7144, 8930, 9899, 10420, 17860, 19798, 20840, 24487, 35720, 39596, 48974, 49495, 79192, 97948, 98990, 122435, 195896, 197980, 244870, 395960, 465253, 489740, 930506, 979480, 1861012, 2326265, 3722024, 4652530, 9305060, 18610120]

約数ペア:

[(1, 18610120), (2, 9305060), (4, 4652530), (5, 3722024), (8, 2326265), (10, 1861012), (19, 979480), (20, 930506), (38, 489740), (40, 465253), (47, 395960), (76, 244870), (94, 197980), (95, 195896), (152, 122435), (188, 98990), (190, 97948), (235, 79192), (376, 49495), (380, 48974), (470, 39596), (521, 35720), (760, 24487), (893, 20840), (940, 19798), (1042, 17860), (1786, 10420), (1880, 9899), (2084, 8930), (2605, 7144), (3572, 5210), (4168, 4465)]