81545475

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{1019}}^1$

素因数の和:1140

約数の個数: 48

約数和(自身を含む): 148740480

約数和(自身を除く): 67195005

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 75, 97, 165, 275, 291, 485, 825, 1019, 1067, 1455, 2425, 3057, 3201, 5095, 5335, 7275, 11209, 15285, 16005, 25475, 26675, 33627, 56045, 76425, 80025, 98843, 168135, 280225, 296529, 494215, 840675, 1087273, 1482645, 2471075, 3261819, 5436365, 7413225, 16309095, 27181825, 81545475]

約数ペア:

[(1, 81545475), (3, 27181825), (5, 16309095), (11, 7413225), (15, 5436365), (25, 3261819), (33, 2471075), (55, 1482645), (75, 1087273), (97, 840675), (165, 494215), (275, 296529), (291, 280225), (485, 168135), (825, 98843), (1019, 80025), (1067, 76425), (1455, 56045), (2425, 33627), (3057, 26675), (3201, 25475), (5095, 16005), (5335, 15285), (7275, 11209)]