19899240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{1193}}^1$

素因数の和:1346

約数の個数: 64

約数和(自身を含む): 60177600

約数和(自身を除く): 40278360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 139, 278, 417, 556, 695, 834, 1112, 1193, 1390, 1668, 2085, 2386, 2780, 3336, 3579, 4170, 4772, 5560, 5965, 7158, 8340, 9544, 11930, 14316, 16680, 17895, 23860, 28632, 35790, 47720, 71580, 143160, 165827, 331654, 497481, 663308, 829135, 994962, 1326616, 1658270, 1989924, 2487405, 3316540, 3979848, 4974810, 6633080, 9949620, 19899240]

約数ペア:

[(1, 19899240), (2, 9949620), (3, 6633080), (4, 4974810), (5, 3979848), (6, 3316540), (8, 2487405), (10, 1989924), (12, 1658270), (15, 1326616), (20, 994962), (24, 829135), (30, 663308), (40, 497481), (60, 331654), (120, 165827), (139, 143160), (278, 71580), (417, 47720), (556, 35790), (695, 28632), (834, 23860), (1112, 17895), (1193, 16680), (1390, 14316), (1668, 11930), (2085, 9544), (2386, 8340), (2780, 7158), (3336, 5965), (3579, 5560), (4170, 4772)]