1387697020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{193}}^1\times {\mathrm{11597}}^1$

素因数の和:11830

約数の個数: 48

約数和(自身を含む): 3024016128

約数和(自身を除く): 1636319108

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 193, 310, 386, 620, 772, 965, 1930, 3860, 5983, 11597, 11966, 23194, 23932, 29915, 46388, 57985, 59830, 115970, 119660, 231940, 359507, 719014, 1438028, 1797535, 2238221, 3595070, 4476442, 7190140, 8952884, 11191105, 22382210, 44764420, 69384851, 138769702, 277539404, 346924255, 693848510, 1387697020]

約数ペア:

[(1, 1387697020), (2, 693848510), (4, 346924255), (5, 277539404), (10, 138769702), (20, 69384851), (31, 44764420), (62, 22382210), (124, 11191105), (155, 8952884), (193, 7190140), (310, 4476442), (386, 3595070), (620, 2238221), (772, 1797535), (965, 1438028), (1930, 719014), (3860, 359507), (5983, 231940), (11597, 119660), (11966, 115970), (23194, 59830), (23932, 57985), (29915, 46388)]