18270840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{21751}}^1$

素因数の和:21772

約数の個数: 64

約数和(自身を含む): 62645760

約数和(自身を除く): 44374920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 21751, 43502, 65253, 87004, 108755, 130506, 152257, 174008, 217510, 261012, 304514, 326265, 435020, 456771, 522024, 609028, 652530, 761285, 870040, 913542, 1218056, 1305060, 1522570, 1827084, 2283855, 2610120, 3045140, 3654168, 4567710, 6090280, 9135420, 18270840]

約数ペア:

[(1, 18270840), (2, 9135420), (3, 6090280), (4, 4567710), (5, 3654168), (6, 3045140), (7, 2610120), (8, 2283855), (10, 1827084), (12, 1522570), (14, 1305060), (15, 1218056), (20, 913542), (21, 870040), (24, 761285), (28, 652530), (30, 609028), (35, 522024), (40, 456771), (42, 435020), (56, 326265), (60, 304514), (70, 261012), (84, 217510), (105, 174008), (120, 152257), (140, 130506), (168, 108755), (210, 87004), (280, 65253), (420, 43502), (840, 21751)]