20190625

素因数分解:

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

素因数の和:116

約数の個数: 48

約数和(自身を含む): 31497984

約数和(自身を除く): 11307359

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, 3125, 4375, 4615, 6461, 8125, 8875, 11375, 12425, 21875, 23075, 32305, 40625, 44375, 56875, 62125, 115375, 161525, 221875, 284375, 310625, 576875, 807625, 1553125, 2884375, 4038125, 20190625]

約数ペア:

[(1, 20190625), (5, 4038125), (7, 2884375), (13, 1553125), (25, 807625), (35, 576875), (65, 310625), (71, 284375), (91, 221875), (125, 161525), (175, 115375), (325, 62125), (355, 56875), (455, 44375), (497, 40625), (625, 32305), (875, 23075), (923, 21875), (1625, 12425), (1775, 11375), (2275, 8875), (2485, 8125), (3125, 6461), (4375, 4615)]