20639636540

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{5851}}^1\times {\mathrm{9283}}^1$

素因数の和:15162

約数の個数: 48

約数和(自身を含む): 45637173120

約数和(自身を除く): 24997536580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 5851, 9283, 11702, 18566, 23404, 29255, 37132, 46415, 58510, 92830, 111169, 117020, 176377, 185660, 222338, 352754, 444676, 555845, 705508, 881885, 1111690, 1763770, 2223380, 3527540, 54314833, 108629666, 217259332, 271574165, 543148330, 1031981827, 1086296660, 2063963654, 4127927308, 5159909135, 10319818270, 20639636540]

約数ペア:

[(1, 20639636540), (2, 10319818270), (4, 5159909135), (5, 4127927308), (10, 2063963654), (19, 1086296660), (20, 1031981827), (38, 543148330), (76, 271574165), (95, 217259332), (190, 108629666), (380, 54314833), (5851, 3527540), (9283, 2223380), (11702, 1763770), (18566, 1111690), (23404, 881885), (29255, 705508), (37132, 555845), (46415, 444676), (58510, 352754), (92830, 222338), (111169, 185660), (117020, 176377)]