18079880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4967}}^1$

素因数の和:4998

約数の個数: 64

約数和(自身を含む): 50077440

約数和(自身を除く): 31997560

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 728, 910, 1820, 3640, 4967, 9934, 19868, 24835, 34769, 39736, 49670, 64571, 69538, 99340, 129142, 139076, 173845, 198680, 258284, 278152, 322855, 347690, 451997, 516568, 645710, 695380, 903994, 1291420, 1390760, 1807988, 2259985, 2582840, 3615976, 4519970, 9039940, 18079880]

約数ペア:

[(1, 18079880), (2, 9039940), (4, 4519970), (5, 3615976), (7, 2582840), (8, 2259985), (10, 1807988), (13, 1390760), (14, 1291420), (20, 903994), (26, 695380), (28, 645710), (35, 516568), (40, 451997), (52, 347690), (56, 322855), (65, 278152), (70, 258284), (91, 198680), (104, 173845), (130, 139076), (140, 129142), (182, 99340), (260, 69538), (280, 64571), (364, 49670), (455, 39736), (520, 34769), (728, 24835), (910, 19868), (1820, 9934), (3640, 4967)]