28754025

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{211}}^1$

素因数の和:326

約数の個数: 48

約数和(自身を含む): 50472960

約数和(自身を除く): 21718935

約数列:

[1, 3, 5, 15, 23, 25, 69, 75, 79, 115, 211, 237, 345, 395, 575, 633, 1055, 1185, 1725, 1817, 1975, 3165, 4853, 5275, 5451, 5925, 9085, 14559, 15825, 16669, 24265, 27255, 45425, 50007, 72795, 83345, 121325, 136275, 250035, 363975, 383387, 416725, 1150161, 1250175, 1916935, 5750805, 9584675, 28754025]

約数ペア:

[(1, 28754025), (3, 9584675), (5, 5750805), (15, 1916935), (23, 1250175), (25, 1150161), (69, 416725), (75, 383387), (79, 363975), (115, 250035), (211, 136275), (237, 121325), (345, 83345), (395, 72795), (575, 50007), (633, 45425), (1055, 27255), (1185, 24265), (1725, 16669), (1817, 15825), (1975, 14559), (3165, 9085), (4853, 5925), (5275, 5451)]