208598380

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{509}}^1\times {\mathrm{661}}^1$

素因数の和:1210

約数の個数: 48

約数和(自身を含む): 453761280

約数和(自身を除く): 245162900

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 509, 620, 661, 1018, 1322, 2036, 2545, 2644, 3305, 5090, 6610, 10180, 13220, 15779, 20491, 31558, 40982, 63116, 78895, 81964, 102455, 157790, 204910, 315580, 336449, 409820, 672898, 1345796, 1682245, 3364490, 6728980, 10429919, 20859838, 41719676, 52149595, 104299190, 208598380]

約数ペア:

[(1, 208598380), (2, 104299190), (4, 52149595), (5, 41719676), (10, 20859838), (20, 10429919), (31, 6728980), (62, 3364490), (124, 1682245), (155, 1345796), (310, 672898), (509, 409820), (620, 336449), (661, 315580), (1018, 204910), (1322, 157790), (2036, 102455), (2545, 81964), (2644, 78895), (3305, 63116), (5090, 40982), (6610, 31558), (10180, 20491), (13220, 15779)]