16889840

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1129}}^1$

素因数の和:1170

約数の個数: 80

約数和(自身を含む): 45398880

約数和(自身を除く): 28509040

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 34, 40, 44, 55, 68, 80, 85, 88, 110, 136, 170, 176, 187, 220, 272, 340, 374, 440, 680, 748, 880, 935, 1129, 1360, 1496, 1870, 2258, 2992, 3740, 4516, 5645, 7480, 9032, 11290, 12419, 14960, 18064, 19193, 22580, 24838, 38386, 45160, 49676, 62095, 76772, 90320, 95965, 99352, 124190, 153544, 191930, 198704, 211123, 248380, 307088, 383860, 422246, 496760, 767720, 844492, 993520, 1055615, 1535440, 1688984, 2111230, 3377968, 4222460, 8444920, 16889840]

約数ペア:

[(1, 16889840), (2, 8444920), (4, 4222460), (5, 3377968), (8, 2111230), (10, 1688984), (11, 1535440), (16, 1055615), (17, 993520), (20, 844492), (22, 767720), (34, 496760), (40, 422246), (44, 383860), (55, 307088), (68, 248380), (80, 211123), (85, 198704), (88, 191930), (110, 153544), (136, 124190), (170, 99352), (176, 95965), (187, 90320), (220, 76772), (272, 62095), (340, 49676), (374, 45160), (440, 38386), (680, 24838), (748, 22580), (880, 19193), (935, 18064), (1129, 14960), (1360, 12419), (1496, 11290), (1870, 9032), (2258, 7480), (2992, 5645), (3740, 4516)]