4000990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{937}}^1$

素因数の和:1012

約数の個数: 32

約数和(自身を含む): 8374464

約数和(自身を除く): 4373474

約数列:

[1, 2, 5, 7, 10, 14, 35, 61, 70, 122, 305, 427, 610, 854, 937, 1874, 2135, 4270, 4685, 6559, 9370, 13118, 32795, 57157, 65590, 114314, 285785, 400099, 571570, 800198, 2000495, 4000990]

約数ペア:

[(1, 4000990), (2, 2000495), (5, 800198), (7, 571570), (10, 400099), (14, 285785), (35, 114314), (61, 65590), (70, 57157), (122, 32795), (305, 13118), (427, 9370), (610, 6559), (854, 4685), (937, 4270), (1874, 2135)]