20945093900

素因数分解:

$2^2\times 5^2\times {\mathrm{149}}^1\times {\mathrm{379}}^1\times {\mathrm{3709}}^1$

素因数の和:4251

約数の個数: 72

約数和(自身を含む): 45888990000

約数和(自身を除く): 24943896100

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 149, 298, 379, 596, 745, 758, 1490, 1516, 1895, 2980, 3709, 3725, 3790, 7418, 7450, 7580, 9475, 14836, 14900, 18545, 18950, 37090, 37900, 56471, 74180, 92725, 112942, 185450, 225884, 282355, 370900, 552641, 564710, 1105282, 1129420, 1405711, 1411775, 2210564, 2763205, 2811422, 2823550, 5526410, 5622844, 5647100, 7028555, 11052820, 13816025, 14057110, 27632050, 28114220, 35142775, 55264100, 70285550, 140571100, 209450939, 418901878, 837803756, 1047254695, 2094509390, 4189018780, 5236273475, 10472546950, 20945093900]

約数ペア:

[(1, 20945093900), (2, 10472546950), (4, 5236273475), (5, 4189018780), (10, 2094509390), (20, 1047254695), (25, 837803756), (50, 418901878), (100, 209450939), (149, 140571100), (298, 70285550), (379, 55264100), (596, 35142775), (745, 28114220), (758, 27632050), (1490, 14057110), (1516, 13816025), (1895, 11052820), (2980, 7028555), (3709, 5647100), (3725, 5622844), (3790, 5526410), (7418, 2823550), (7450, 2811422), (7580, 2763205), (9475, 2210564), (14836, 1411775), (14900, 1405711), (18545, 1129420), (18950, 1105282), (37090, 564710), (37900, 552641), (56471, 370900), (74180, 282355), (92725, 225884), (112942, 185450)]