20807790

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{23917}}^1$

素因数の和:23956

約数の個数: 32

約数和(自身を含む): 51662880

約数和(自身を除く): 30855090

約数列:

[1, 2, 3, 5, 6, 10, 15, 29, 30, 58, 87, 145, 174, 290, 435, 870, 23917, 47834, 71751, 119585, 143502, 239170, 358755, 693593, 717510, 1387186, 2080779, 3467965, 4161558, 6935930, 10403895, 20807790]

約数ペア:

[(1, 20807790), (2, 10403895), (3, 6935930), (5, 4161558), (6, 3467965), (10, 2080779), (15, 1387186), (29, 717510), (30, 693593), (58, 358755), (87, 239170), (145, 143502), (174, 119585), (290, 71751), (435, 47834), (870, 23917)]