28046775

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{229}}^1$

素因数の和:336

約数の個数: 48

約数和(自身を含む): 49282560

約数和(自身を除く): 21235785

約数列:

[1, 3, 5, 15, 23, 25, 69, 71, 75, 115, 213, 229, 345, 355, 575, 687, 1065, 1145, 1633, 1725, 1775, 3435, 4899, 5267, 5325, 5725, 8165, 15801, 16259, 17175, 24495, 26335, 40825, 48777, 79005, 81295, 122475, 131675, 243885, 373957, 395025, 406475, 1121871, 1219425, 1869785, 5609355, 9348925, 28046775]

約数ペア:

[(1, 28046775), (3, 9348925), (5, 5609355), (15, 1869785), (23, 1219425), (25, 1121871), (69, 406475), (71, 395025), (75, 373957), (115, 243885), (213, 131675), (229, 122475), (345, 81295), (355, 79005), (575, 48777), (687, 40825), (1065, 26335), (1145, 24495), (1633, 17175), (1725, 16259), (1775, 15801), (3435, 8165), (4899, 5725), (5267, 5325)]