20480790

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{1171}}^1$

素因数の和:1245

約数の個数: 64

約数和(自身を含む): 54680832

約数和(自身を除く): 34200042

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 53, 55, 66, 106, 110, 159, 165, 265, 318, 330, 530, 583, 795, 1166, 1171, 1590, 1749, 2342, 2915, 3498, 3513, 5830, 5855, 7026, 8745, 11710, 12881, 17490, 17565, 25762, 35130, 38643, 62063, 64405, 77286, 124126, 128810, 186189, 193215, 310315, 372378, 386430, 620630, 682693, 930945, 1365386, 1861890, 2048079, 3413465, 4096158, 6826930, 10240395, 20480790]

約数ペア:

[(1, 20480790), (2, 10240395), (3, 6826930), (5, 4096158), (6, 3413465), (10, 2048079), (11, 1861890), (15, 1365386), (22, 930945), (30, 682693), (33, 620630), (53, 386430), (55, 372378), (66, 310315), (106, 193215), (110, 186189), (159, 128810), (165, 124126), (265, 77286), (318, 64405), (330, 62063), (530, 38643), (583, 35130), (795, 25762), (1166, 17565), (1171, 17490), (1590, 12881), (1749, 11710), (2342, 8745), (2915, 7026), (3498, 5855), (3513, 5830)]