18142960

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{389}}^1$

素因数の和:466

約数の個数: 80

約数和(自身を含む): 47005920

約数和(自身を除く): 28862960

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 53, 55, 80, 88, 106, 110, 176, 212, 220, 265, 389, 424, 440, 530, 583, 778, 848, 880, 1060, 1166, 1556, 1945, 2120, 2332, 2915, 3112, 3890, 4240, 4279, 4664, 5830, 6224, 7780, 8558, 9328, 11660, 15560, 17116, 20617, 21395, 23320, 31120, 34232, 41234, 42790, 46640, 68464, 82468, 85580, 103085, 164936, 171160, 206170, 226787, 329872, 342320, 412340, 453574, 824680, 907148, 1133935, 1649360, 1814296, 2267870, 3628592, 4535740, 9071480, 18142960]

約数ペア:

[(1, 18142960), (2, 9071480), (4, 4535740), (5, 3628592), (8, 2267870), (10, 1814296), (11, 1649360), (16, 1133935), (20, 907148), (22, 824680), (40, 453574), (44, 412340), (53, 342320), (55, 329872), (80, 226787), (88, 206170), (106, 171160), (110, 164936), (176, 103085), (212, 85580), (220, 82468), (265, 68464), (389, 46640), (424, 42790), (440, 41234), (530, 34232), (583, 31120), (778, 23320), (848, 21395), (880, 20617), (1060, 17116), (1166, 15560), (1556, 11660), (1945, 9328), (2120, 8558), (2332, 7780), (2915, 6224), (3112, 5830), (3890, 4664), (4240, 4279)]