20727460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{2749}}^1$

素因数の和:2800

約数の個数: 48

約数和(自身を含む): 48510000

約数和(自身を除く): 27782540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 29, 52, 58, 65, 116, 130, 145, 260, 290, 377, 580, 754, 1508, 1885, 2749, 3770, 5498, 7540, 10996, 13745, 27490, 35737, 54980, 71474, 79721, 142948, 159442, 178685, 318884, 357370, 398605, 714740, 797210, 1036373, 1594420, 2072746, 4145492, 5181865, 10363730, 20727460]

約数ペア:

[(1, 20727460), (2, 10363730), (4, 5181865), (5, 4145492), (10, 2072746), (13, 1594420), (20, 1036373), (26, 797210), (29, 714740), (52, 398605), (58, 357370), (65, 318884), (116, 178685), (130, 159442), (145, 142948), (260, 79721), (290, 71474), (377, 54980), (580, 35737), (754, 27490), (1508, 13745), (1885, 10996), (2749, 7540), (3770, 5498)]