21142160

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{701}}^1$

素因数の和:756

約数の個数: 80

約数和(自身を含む): 54840240

約数和(自身を除く): 33698080

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 29, 40, 52, 58, 65, 80, 104, 116, 130, 145, 208, 232, 260, 290, 377, 464, 520, 580, 701, 754, 1040, 1160, 1402, 1508, 1885, 2320, 2804, 3016, 3505, 3770, 5608, 6032, 7010, 7540, 9113, 11216, 14020, 15080, 18226, 20329, 28040, 30160, 36452, 40658, 45565, 56080, 72904, 81316, 91130, 101645, 145808, 162632, 182260, 203290, 264277, 325264, 364520, 406580, 528554, 729040, 813160, 1057108, 1321385, 1626320, 2114216, 2642770, 4228432, 5285540, 10571080, 21142160]

約数ペア:

[(1, 21142160), (2, 10571080), (4, 5285540), (5, 4228432), (8, 2642770), (10, 2114216), (13, 1626320), (16, 1321385), (20, 1057108), (26, 813160), (29, 729040), (40, 528554), (52, 406580), (58, 364520), (65, 325264), (80, 264277), (104, 203290), (116, 182260), (130, 162632), (145, 145808), (208, 101645), (232, 91130), (260, 81316), (290, 72904), (377, 56080), (464, 45565), (520, 40658), (580, 36452), (701, 30160), (754, 28040), (1040, 20329), (1160, 18226), (1402, 15080), (1508, 14020), (1885, 11216), (2320, 9113), (2804, 7540), (3016, 7010), (3505, 6032), (3770, 5608)]