55115960

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{1543}}^1$

素因数の和:1620

約数の個数: 64

約数和(自身を含む): 133401600

約数和(自身を除く): 78285640

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 47, 76, 94, 95, 152, 188, 190, 235, 376, 380, 470, 760, 893, 940, 1543, 1786, 1880, 3086, 3572, 4465, 6172, 7144, 7715, 8930, 12344, 15430, 17860, 29317, 30860, 35720, 58634, 61720, 72521, 117268, 145042, 146585, 234536, 290084, 293170, 362605, 580168, 586340, 725210, 1172680, 1377899, 1450420, 2755798, 2900840, 5511596, 6889495, 11023192, 13778990, 27557980, 55115960]

約数ペア:

[(1, 55115960), (2, 27557980), (4, 13778990), (5, 11023192), (8, 6889495), (10, 5511596), (19, 2900840), (20, 2755798), (38, 1450420), (40, 1377899), (47, 1172680), (76, 725210), (94, 586340), (95, 580168), (152, 362605), (188, 293170), (190, 290084), (235, 234536), (376, 146585), (380, 145042), (470, 117268), (760, 72521), (893, 61720), (940, 58634), (1543, 35720), (1786, 30860), (1880, 29317), (3086, 17860), (3572, 15430), (4465, 12344), (6172, 8930), (7144, 7715)]