278371120

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{49009}}^1$

素因数の和:49093

約数の個数: 40

約数和(自身を含む): 656341920

約数和(自身を除く): 377970800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 49009, 98018, 196036, 245045, 392072, 490090, 784144, 980180, 1960360, 3479639, 3920720, 6959278, 13918556, 17398195, 27837112, 34796390, 55674224, 69592780, 139185560, 278371120]

約数ペア:

[(1, 278371120), (2, 139185560), (4, 69592780), (5, 55674224), (8, 34796390), (10, 27837112), (16, 17398195), (20, 13918556), (40, 6959278), (71, 3920720), (80, 3479639), (142, 1960360), (284, 980180), (355, 784144), (568, 490090), (710, 392072), (1136, 245045), (1420, 196036), (2840, 98018), (5680, 49009)]