81882008

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{12907}}^1$

素因数の和:12987

約数の個数: 32

約数和(自身を含む): 168062160

約数和(自身を除く): 86180152

約数列:

[1, 2, 4, 8, 13, 26, 52, 61, 104, 122, 244, 488, 793, 1586, 3172, 6344, 12907, 25814, 51628, 103256, 167791, 335582, 671164, 787327, 1342328, 1574654, 3149308, 6298616, 10235251, 20470502, 40941004, 81882008]

約数ペア:

[(1, 81882008), (2, 40941004), (4, 20470502), (8, 10235251), (13, 6298616), (26, 3149308), (52, 1574654), (61, 1342328), (104, 787327), (122, 671164), (244, 335582), (488, 167791), (793, 103256), (1586, 51628), (3172, 25814), (6344, 12907)]