20667720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{5939}}^1$

素因数の和:5982

約数の個数: 64

約数和(自身を含む): 64152000

約数和(自身を除く): 43484280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 29, 30, 40, 58, 60, 87, 116, 120, 145, 174, 232, 290, 348, 435, 580, 696, 870, 1160, 1740, 3480, 5939, 11878, 17817, 23756, 29695, 35634, 47512, 59390, 71268, 89085, 118780, 142536, 172231, 178170, 237560, 344462, 356340, 516693, 688924, 712680, 861155, 1033386, 1377848, 1722310, 2066772, 2583465, 3444620, 4133544, 5166930, 6889240, 10333860, 20667720]

約数ペア:

[(1, 20667720), (2, 10333860), (3, 6889240), (4, 5166930), (5, 4133544), (6, 3444620), (8, 2583465), (10, 2066772), (12, 1722310), (15, 1377848), (20, 1033386), (24, 861155), (29, 712680), (30, 688924), (40, 516693), (58, 356340), (60, 344462), (87, 237560), (116, 178170), (120, 172231), (145, 142536), (174, 118780), (232, 89085), (290, 71268), (348, 59390), (435, 47512), (580, 35634), (696, 29695), (870, 23756), (1160, 17817), (1740, 11878), (3480, 5939)]