81006916

素因数分解:

$2^2\times {\mathrm{79}}^1\times {\mathrm{389}}^1\times {\mathrm{659}}^1$

素因数の和:1131

約数の個数: 24

約数和(自身を含む): 144144000

約数和(自身を除く): 63137084

約数列:

[1, 2, 4, 79, 158, 316, 389, 659, 778, 1318, 1556, 2636, 30731, 52061, 61462, 104122, 122924, 208244, 256351, 512702, 1025404, 20251729, 40503458, 81006916]

約数ペア:

[(1, 81006916), (2, 40503458), (4, 20251729), (79, 1025404), (158, 512702), (316, 256351), (389, 208244), (659, 122924), (778, 104122), (1318, 61462), (1556, 52061), (2636, 30731)]