128943920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{230257}}^1$

素因数の和:230277

約数の個数: 40

約数和(自身を含む): 342623904

約数和(自身を除く): 213679984

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 230257, 460514, 921028, 1151285, 1611799, 1842056, 2302570, 3223598, 3684112, 4605140, 6447196, 8058995, 9210280, 12894392, 16117990, 18420560, 25788784, 32235980, 64471960, 128943920]

約数ペア:

[(1, 128943920), (2, 64471960), (4, 32235980), (5, 25788784), (7, 18420560), (8, 16117990), (10, 12894392), (14, 9210280), (16, 8058995), (20, 6447196), (28, 4605140), (35, 3684112), (40, 3223598), (56, 2302570), (70, 1842056), (80, 1611799), (112, 1151285), (140, 921028), (280, 460514), (560, 230257)]