27720175

素因数分解:

$5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:208

約数の個数: 48

約数和(自身を含む): 41997312

約数和(自身を除く): 14277137

約数列:

[1, 5, 7, 23, 25, 35, 71, 97, 115, 161, 175, 355, 485, 497, 575, 679, 805, 1633, 1775, 2231, 2425, 2485, 3395, 4025, 6887, 8165, 11155, 11431, 12425, 15617, 16975, 34435, 40825, 48209, 55775, 57155, 78085, 158401, 172175, 241045, 285775, 390425, 792005, 1108807, 1205225, 3960025, 5544035, 27720175]

約数ペア:

[(1, 27720175), (5, 5544035), (7, 3960025), (23, 1205225), (25, 1108807), (35, 792005), (71, 390425), (97, 285775), (115, 241045), (161, 172175), (175, 158401), (355, 78085), (485, 57155), (497, 55775), (575, 48209), (679, 40825), (805, 34435), (1633, 16975), (1775, 15617), (2231, 12425), (2425, 11431), (2485, 11155), (3395, 8165), (4025, 6887)]