814786640

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{328543}}^1$

素因数の和:328587

約数の個数: 40

約数和(自身を含む): 1955493888

約数和(自身を除く): 1140707248

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 328543, 657086, 1314172, 1642715, 2628344, 3285430, 5256688, 6570860, 10184833, 13141720, 20369666, 26283440, 40739332, 50924165, 81478664, 101848330, 162957328, 203696660, 407393320, 814786640]

約数ペア:

[(1, 814786640), (2, 407393320), (4, 203696660), (5, 162957328), (8, 101848330), (10, 81478664), (16, 50924165), (20, 40739332), (31, 26283440), (40, 20369666), (62, 13141720), (80, 10184833), (124, 6570860), (155, 5256688), (248, 3285430), (310, 2628344), (496, 1642715), (620, 1314172), (1240, 657086), (2480, 328543)]