1280924360

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{524969}}^1$

素因数の和:525041

約数の個数: 32

約数和(自身を含む): 2929332600

約数和(自身を除く): 1648408240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 524969, 1049938, 2099876, 2624845, 4199752, 5249690, 10499380, 20998760, 32023109, 64046218, 128092436, 160115545, 256184872, 320231090, 640462180, 1280924360]

約数ペア:

[(1, 1280924360), (2, 640462180), (4, 320231090), (5, 256184872), (8, 160115545), (10, 128092436), (20, 64046218), (40, 32023109), (61, 20998760), (122, 10499380), (244, 5249690), (305, 4199752), (488, 2624845), (610, 2099876), (1220, 1049938), (2440, 524969)]