1280451915

素因数分解:

$3^3\times 5^1\times {\mathrm{61}}^2\times {\mathrm{2549}}^1$

素因数の和:2685

約数の個数: 48

約数和(自身を含む): 2315196000

約数和(自身を除く): 1034744085

約数列:

[1, 3, 5, 9, 15, 27, 45, 61, 135, 183, 305, 549, 915, 1647, 2549, 2745, 3721, 7647, 8235, 11163, 12745, 18605, 22941, 33489, 38235, 55815, 68823, 100467, 114705, 155489, 167445, 344115, 466467, 502335, 777445, 1399401, 2332335, 4198203, 6997005, 9484829, 20991015, 28454487, 47424145, 85363461, 142272435, 256090383, 426817305, 1280451915]

約数ペア:

[(1, 1280451915), (3, 426817305), (5, 256090383), (9, 142272435), (15, 85363461), (27, 47424145), (45, 28454487), (61, 20991015), (135, 9484829), (183, 6997005), (305, 4198203), (549, 2332335), (915, 1399401), (1647, 777445), (2549, 502335), (2745, 466467), (3721, 344115), (7647, 167445), (8235, 155489), (11163, 114705), (12745, 100467), (18605, 68823), (22941, 55815), (33489, 38235)]