208613620

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1\times {\mathrm{1373}}^1$

素因数の和:1560

約数の個数: 48

約数和(自身を含む): 448737408

約数和(自身を除く): 240123788

約数列:

[1, 2, 4, 5, 10, 20, 71, 107, 142, 214, 284, 355, 428, 535, 710, 1070, 1373, 1420, 2140, 2746, 5492, 6865, 7597, 13730, 15194, 27460, 30388, 37985, 75970, 97483, 146911, 151940, 194966, 293822, 389932, 487415, 587644, 734555, 974830, 1469110, 1949660, 2938220, 10430681, 20861362, 41722724, 52153405, 104306810, 208613620]

約数ペア:

[(1, 208613620), (2, 104306810), (4, 52153405), (5, 41722724), (10, 20861362), (20, 10430681), (71, 2938220), (107, 1949660), (142, 1469110), (214, 974830), (284, 734555), (355, 587644), (428, 487415), (535, 389932), (710, 293822), (1070, 194966), (1373, 151940), (1420, 146911), (2140, 97483), (2746, 75970), (5492, 37985), (6865, 30388), (7597, 27460), (13730, 15194)]