78310515

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^2\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:264

約数の個数: 48

約数和(自身を含む): 133781760

約数和(自身を除く): 55471245

約数列:

[1, 3, 5, 15, 23, 69, 71, 115, 139, 213, 345, 355, 417, 529, 695, 1065, 1587, 1633, 2085, 2645, 3197, 4899, 7935, 8165, 9591, 9869, 15985, 24495, 29607, 37559, 47955, 49345, 73531, 112677, 148035, 187795, 220593, 226987, 367655, 563385, 680961, 1102965, 1134935, 3404805, 5220701, 15662103, 26103505, 78310515]

約数ペア:

[(1, 78310515), (3, 26103505), (5, 15662103), (15, 5220701), (23, 3404805), (69, 1134935), (71, 1102965), (115, 680961), (139, 563385), (213, 367655), (345, 226987), (355, 220593), (417, 187795), (529, 148035), (695, 112677), (1065, 73531), (1587, 49345), (1633, 47955), (2085, 37559), (2645, 29607), (3197, 24495), (4899, 15985), (7935, 9869), (8165, 9591)]