2558123240

素因数分解:

$2^3\times 5^1\times {\mathrm{439}}^1\times {\mathrm{145679}}^1$

素因数の和:146129

約数の個数: 32

約数和(自身を含む): 5768928000

約数和(自身を除く): 3210804760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 439, 878, 1756, 2195, 3512, 4390, 8780, 17560, 145679, 291358, 582716, 728395, 1165432, 1456790, 2913580, 5827160, 63953081, 127906162, 255812324, 319765405, 511624648, 639530810, 1279061620, 2558123240]

約数ペア:

[(1, 2558123240), (2, 1279061620), (4, 639530810), (5, 511624648), (8, 319765405), (10, 255812324), (20, 127906162), (40, 63953081), (439, 5827160), (878, 2913580), (1756, 1456790), (2195, 1165432), (3512, 728395), (4390, 582716), (8780, 291358), (17560, 145679)]