393309440

素因数分解:

$2^8\times 5^1\times {\mathrm{307273}}^1$

素因数の和:307294

約数の個数: 36

約数和(自身を含む): 942102084

約数和(自身を除く): 548792644

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 307273, 614546, 1229092, 1536365, 2458184, 3072730, 4916368, 6145460, 9832736, 12290920, 19665472, 24581840, 39330944, 49163680, 78661888, 98327360, 196654720, 393309440]

約数ペア:

[(1, 393309440), (2, 196654720), (4, 98327360), (5, 78661888), (8, 49163680), (10, 39330944), (16, 24581840), (20, 19665472), (32, 12290920), (40, 9832736), (64, 6145460), (80, 4916368), (128, 3072730), (160, 2458184), (256, 1536365), (320, 1229092), (640, 614546), (1280, 307273)]