81365820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{211}}^1\times {\mathrm{6427}}^1$

素因数の和:6650

約数の個数: 48

約数和(自身を含む): 228939648

約数和(自身を除く): 147573828

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 211, 422, 633, 844, 1055, 1266, 2110, 2532, 3165, 4220, 6330, 6427, 12660, 12854, 19281, 25708, 32135, 38562, 64270, 77124, 96405, 128540, 192810, 385620, 1356097, 2712194, 4068291, 5424388, 6780485, 8136582, 13560970, 16273164, 20341455, 27121940, 40682910, 81365820]

約数ペア:

[(1, 81365820), (2, 40682910), (3, 27121940), (4, 20341455), (5, 16273164), (6, 13560970), (10, 8136582), (12, 6780485), (15, 5424388), (20, 4068291), (30, 2712194), (60, 1356097), (211, 385620), (422, 192810), (633, 128540), (844, 96405), (1055, 77124), (1266, 64270), (2110, 38562), (2532, 32135), (3165, 25708), (4220, 19281), (6330, 12854), (6427, 12660)]