20157912

素因数分解:

$2^3\times 3^2\times {\mathrm{149}}^1\times {\mathrm{1879}}^1$

素因数の和:2040

約数の個数: 48

約数和(自身を含む): 54990000

約数和(自身を除く): 34832088

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 149, 298, 447, 596, 894, 1192, 1341, 1788, 1879, 2682, 3576, 3758, 5364, 5637, 7516, 10728, 11274, 15032, 16911, 22548, 33822, 45096, 67644, 135288, 279971, 559942, 839913, 1119884, 1679826, 2239768, 2519739, 3359652, 5039478, 6719304, 10078956, 20157912]

約数ペア:

[(1, 20157912), (2, 10078956), (3, 6719304), (4, 5039478), (6, 3359652), (8, 2519739), (9, 2239768), (12, 1679826), (18, 1119884), (24, 839913), (36, 559942), (72, 279971), (149, 135288), (298, 67644), (447, 45096), (596, 33822), (894, 22548), (1192, 16911), (1341, 15032), (1788, 11274), (1879, 10728), (2682, 7516), (3576, 5637), (3758, 5364)]