129625040

素因数分解:

$2^4\times 5^1\times {\mathrm{557}}^1\times {\mathrm{2909}}^1$

素因数の和:3479

約数の個数: 40

約数和(自身を含む): 302023080

約数和(自身を除く): 172398040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 557, 1114, 2228, 2785, 2909, 4456, 5570, 5818, 8912, 11140, 11636, 14545, 22280, 23272, 29090, 44560, 46544, 58180, 116360, 232720, 1620313, 3240626, 6481252, 8101565, 12962504, 16203130, 25925008, 32406260, 64812520, 129625040]

約数ペア:

[(1, 129625040), (2, 64812520), (4, 32406260), (5, 25925008), (8, 16203130), (10, 12962504), (16, 8101565), (20, 6481252), (40, 3240626), (80, 1620313), (557, 232720), (1114, 116360), (2228, 58180), (2785, 46544), (2909, 44560), (4456, 29090), (5570, 23272), (5818, 22280), (8912, 14545), (11140, 11636)]