78351420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{186551}}^1$

素因数の和:186570

約数の個数: 48

約数和(自身を含む): 250725888

約数和(自身を除く): 172374468

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 186551, 373102, 559653, 746204, 932755, 1119306, 1305857, 1865510, 2238612, 2611714, 2798265, 3731020, 3917571, 5223428, 5596530, 6529285, 7835142, 11193060, 13058570, 15670284, 19587855, 26117140, 39175710, 78351420]

約数ペア:

[(1, 78351420), (2, 39175710), (3, 26117140), (4, 19587855), (5, 15670284), (6, 13058570), (7, 11193060), (10, 7835142), (12, 6529285), (14, 5596530), (15, 5223428), (20, 3917571), (21, 3731020), (28, 2798265), (30, 2611714), (35, 2238612), (42, 1865510), (60, 1305857), (70, 1119306), (84, 932755), (105, 746204), (140, 559653), (210, 373102), (420, 186551)]