4038125

素因数分解:

$5^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1$

素因数の和:111

約数の個数: 40

約数和(自身を含む): 6297984

約数和(自身を除く): 2259859

約数列:

[1, 5, 7, 13, 25, 35, 65, 71, 91, 125, 175, 325, 355, 455, 497, 625, 875, 923, 1625, 1775, 2275, 2485, 4375, 4615, 6461, 8125, 8875, 11375, 12425, 23075, 32305, 44375, 56875, 62125, 115375, 161525, 310625, 576875, 807625, 4038125]

約数ペア:

[(1, 4038125), (5, 807625), (7, 576875), (13, 310625), (25, 161525), (35, 115375), (65, 62125), (71, 56875), (91, 44375), (125, 32305), (175, 23075), (325, 12425), (355, 11375), (455, 8875), (497, 8125), (625, 6461), (875, 4615), (923, 4375), (1625, 2485), (1775, 2275)]