123942840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{147551}}^1$

素因数の和:147572

約数の個数: 64

約数和(自身を含む): 424949760

約数和(自身を除く): 301006920

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, 147551, 295102, 442653, 590204, 737755, 885306, 1032857, 1180408, 1475510, 1770612, 2065714, 2213265, 2951020, 3098571, 3541224, 4131428, 4426530, 5164285, 5902040, 6197142, 8262856, 8853060, 10328570, 12394284, 15492855, 17706120, 20657140, 24788568, 30985710, 41314280, 61971420, 123942840]

約数ペア:

[(1, 123942840), (2, 61971420), (3, 41314280), (4, 30985710), (5, 24788568), (6, 20657140), (7, 17706120), (8, 15492855), (10, 12394284), (12, 10328570), (14, 8853060), (15, 8262856), (20, 6197142), (21, 5902040), (24, 5164285), (28, 4426530), (30, 4131428), (35, 3541224), (40, 3098571), (42, 2951020), (56, 2213265), (60, 2065714), (70, 1770612), (84, 1475510), (105, 1180408), (120, 1032857), (140, 885306), (168, 737755), (210, 590204), (280, 442653), (420, 295102), (840, 147551)]