28403375

素因数分解:

$5^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{227}}^1$

素因数の和:273

約数の個数: 64

約数和(自身を含む): 47803392

約数和(自身を除く): 19400017

約数列:

[1, 5, 7, 11, 13, 25, 35, 55, 65, 77, 91, 125, 143, 175, 227, 275, 325, 385, 455, 715, 875, 1001, 1135, 1375, 1589, 1625, 1925, 2275, 2497, 2951, 3575, 5005, 5675, 7945, 9625, 11375, 12485, 14755, 17479, 17875, 20657, 25025, 28375, 32461, 39725, 62425, 73775, 87395, 103285, 125125, 162305, 198625, 227227, 312125, 368875, 436975, 516425, 811525, 1136135, 2184875, 2582125, 4057625, 5680675, 28403375]

約数ペア:

[(1, 28403375), (5, 5680675), (7, 4057625), (11, 2582125), (13, 2184875), (25, 1136135), (35, 811525), (55, 516425), (65, 436975), (77, 368875), (91, 312125), (125, 227227), (143, 198625), (175, 162305), (227, 125125), (275, 103285), (325, 87395), (385, 73775), (455, 62425), (715, 39725), (875, 32461), (1001, 28375), (1135, 25025), (1375, 20657), (1589, 17875), (1625, 17479), (1925, 14755), (2275, 12485), (2497, 11375), (2951, 9625), (3575, 7945), (5005, 5675)]