81707325

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{1511}}^1$

素因数の和:1634

約数の個数: 48

約数和(自身を含む): 155990016

約数和(自身を除く): 74282691

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 103, 105, 175, 309, 515, 525, 721, 1511, 1545, 2163, 2575, 3605, 4533, 7555, 7725, 10577, 10815, 18025, 22665, 31731, 37775, 52885, 54075, 113325, 155633, 158655, 264425, 466899, 778165, 793275, 1089431, 2334495, 3268293, 3890825, 5447155, 11672475, 16341465, 27235775, 81707325]

約数ペア:

[(1, 81707325), (3, 27235775), (5, 16341465), (7, 11672475), (15, 5447155), (21, 3890825), (25, 3268293), (35, 2334495), (75, 1089431), (103, 793275), (105, 778165), (175, 466899), (309, 264425), (515, 158655), (525, 155633), (721, 113325), (1511, 54075), (1545, 52885), (2163, 37775), (2575, 31731), (3605, 22665), (4533, 18025), (7555, 10815), (7725, 10577)]