81474975

素因数分解:

$3^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{11681}}^1$

素因数の和:11728

約数の個数: 36

約数和(自身を含む): 150651072

約数和(自身を除く): 69176097

約数列:

[1, 3, 5, 9, 15, 25, 31, 45, 75, 93, 155, 225, 279, 465, 775, 1395, 2325, 6975, 11681, 35043, 58405, 105129, 175215, 292025, 362111, 525645, 876075, 1086333, 1810555, 2628225, 3258999, 5431665, 9052775, 16294995, 27158325, 81474975]

約数ペア:

[(1, 81474975), (3, 27158325), (5, 16294995), (9, 9052775), (15, 5431665), (25, 3258999), (31, 2628225), (45, 1810555), (75, 1086333), (93, 876075), (155, 525645), (225, 362111), (279, 292025), (465, 175215), (775, 105129), (1395, 58405), (2325, 35043), (6975, 11681)]