18140870

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:233

約数の個数: 64

約数和(自身を含む): 38491200

約数和(自身を除く): 20350330

約数列:

[1, 2, 5, 10, 11, 17, 22, 34, 55, 85, 89, 109, 110, 170, 178, 187, 218, 374, 445, 545, 890, 935, 979, 1090, 1199, 1513, 1853, 1870, 1958, 2398, 3026, 3706, 4895, 5995, 7565, 9265, 9701, 9790, 11990, 15130, 16643, 18530, 19402, 20383, 33286, 40766, 48505, 83215, 97010, 101915, 106711, 164917, 166430, 203830, 213422, 329834, 533555, 824585, 1067110, 1649170, 1814087, 3628174, 9070435, 18140870]

約数ペア:

[(1, 18140870), (2, 9070435), (5, 3628174), (10, 1814087), (11, 1649170), (17, 1067110), (22, 824585), (34, 533555), (55, 329834), (85, 213422), (89, 203830), (109, 166430), (110, 164917), (170, 106711), (178, 101915), (187, 97010), (218, 83215), (374, 48505), (445, 40766), (545, 33286), (890, 20383), (935, 19402), (979, 18530), (1090, 16643), (1199, 15130), (1513, 11990), (1853, 9790), (1870, 9701), (1958, 9265), (2398, 7565), (3026, 5995), (3706, 4895)]