31404940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{2221}}^1$

素因数の和:2338

約数の個数: 48

約数和(自身を含む): 76152384

約数和(自身を除く): 44747444

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 101, 140, 202, 404, 505, 707, 1010, 1414, 2020, 2221, 2828, 3535, 4442, 7070, 8884, 11105, 14140, 15547, 22210, 31094, 44420, 62188, 77735, 155470, 224321, 310940, 448642, 897284, 1121605, 1570247, 2243210, 3140494, 4486420, 6280988, 7851235, 15702470, 31404940]

約数ペア:

[(1, 31404940), (2, 15702470), (4, 7851235), (5, 6280988), (7, 4486420), (10, 3140494), (14, 2243210), (20, 1570247), (28, 1121605), (35, 897284), (70, 448642), (101, 310940), (140, 224321), (202, 155470), (404, 77735), (505, 62188), (707, 44420), (1010, 31094), (1414, 22210), (2020, 15547), (2221, 14140), (2828, 11105), (3535, 8884), (4442, 7070)]