404175020

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^2\times {\mathrm{5431}}^1$

素因数の和:5562

約数の個数: 36

約数和(自身を含む): 863068752

約数和(自身を除く): 458893732

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 3721, 5431, 7442, 10862, 14884, 18605, 21724, 27155, 37210, 54310, 74420, 108620, 331291, 662582, 1325164, 1656455, 3312910, 6625820, 20208751, 40417502, 80835004, 101043755, 202087510, 404175020]

約数ペア:

[(1, 404175020), (2, 202087510), (4, 101043755), (5, 80835004), (10, 40417502), (20, 20208751), (61, 6625820), (122, 3312910), (244, 1656455), (305, 1325164), (610, 662582), (1220, 331291), (3721, 108620), (5431, 74420), (7442, 54310), (10862, 37210), (14884, 27155), (18605, 21724)]