81767816

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{12889}}^1$

素因数の和:12969

約数の個数: 32

約数和(自身を含む): 167827800

約数和(自身を除く): 86059984

約数列:

[1, 2, 4, 8, 13, 26, 52, 61, 104, 122, 244, 488, 793, 1586, 3172, 6344, 12889, 25778, 51556, 103112, 167557, 335114, 670228, 786229, 1340456, 1572458, 3144916, 6289832, 10220977, 20441954, 40883908, 81767816]

約数ペア:

[(1, 81767816), (2, 40883908), (4, 20441954), (8, 10220977), (13, 6289832), (26, 3144916), (52, 1572458), (61, 1340456), (104, 786229), (122, 670228), (244, 335114), (488, 167557), (793, 103112), (1586, 51556), (3172, 25778), (6344, 12889)]