7980375

素因数分解:

$3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{1637}}^1$

素因数の和:1668

約数の個数: 32

約数和(自身を含む): 14309568

約数和(自身を除く): 6329193

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 125, 195, 325, 375, 975, 1625, 1637, 4875, 4911, 8185, 21281, 24555, 40925, 63843, 106405, 122775, 204625, 319215, 532025, 613875, 1596075, 2660125, 7980375]

約数ペア:

[(1, 7980375), (3, 2660125), (5, 1596075), (13, 613875), (15, 532025), (25, 319215), (39, 204625), (65, 122775), (75, 106405), (125, 63843), (195, 40925), (325, 24555), (375, 21281), (975, 8185), (1625, 4911), (1637, 4875)]