514840

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{211}}^1$

素因数の和:283

約数の個数: 32

約数和(自身を含む): 1182960

約数和(自身を除く): 668120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 211, 244, 305, 422, 488, 610, 844, 1055, 1220, 1688, 2110, 2440, 4220, 8440, 12871, 25742, 51484, 64355, 102968, 128710, 257420, 514840]

約数ペア:

[(1, 514840), (2, 257420), (4, 128710), (5, 102968), (8, 64355), (10, 51484), (20, 25742), (40, 12871), (61, 8440), (122, 4220), (211, 2440), (244, 2110), (305, 1688), (422, 1220), (488, 1055), (610, 844)]