20631780

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2939}}^1$

素因数の和:2970

約数の個数: 96

約数和(自身を含む): 69148800

約数和(自身を除く): 48517020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 27, 30, 36, 39, 45, 52, 54, 60, 65, 78, 90, 108, 117, 130, 135, 156, 180, 195, 234, 260, 270, 351, 390, 468, 540, 585, 702, 780, 1170, 1404, 1755, 2340, 2939, 3510, 5878, 7020, 8817, 11756, 14695, 17634, 26451, 29390, 35268, 38207, 44085, 52902, 58780, 76414, 79353, 88170, 105804, 114621, 132255, 152828, 158706, 176340, 191035, 229242, 264510, 317412, 343863, 382070, 396765, 458484, 529020, 573105, 687726, 764140, 793530, 1031589, 1146210, 1375452, 1587060, 1719315, 2063178, 2292420, 3438630, 4126356, 5157945, 6877260, 10315890, 20631780]

約数ペア:

[(1, 20631780), (2, 10315890), (3, 6877260), (4, 5157945), (5, 4126356), (6, 3438630), (9, 2292420), (10, 2063178), (12, 1719315), (13, 1587060), (15, 1375452), (18, 1146210), (20, 1031589), (26, 793530), (27, 764140), (30, 687726), (36, 573105), (39, 529020), (45, 458484), (52, 396765), (54, 382070), (60, 343863), (65, 317412), (78, 264510), (90, 229242), (108, 191035), (117, 176340), (130, 158706), (135, 152828), (156, 132255), (180, 114621), (195, 105804), (234, 88170), (260, 79353), (270, 76414), (351, 58780), (390, 52902), (468, 44085), (540, 38207), (585, 35268), (702, 29390), (780, 26451), (1170, 17634), (1404, 14695), (1755, 11756), (2340, 8817), (2939, 7020), (3510, 5878)]