18323325

素因数分解:

$3^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1$

素因数の和:155

約数の個数: 72

約数和(自身を含む): 35283456

約数和(自身を除く): 16960131

約数列:

[1, 3, 5, 9, 15, 25, 31, 37, 45, 71, 75, 93, 111, 155, 185, 213, 225, 279, 333, 355, 465, 555, 639, 775, 925, 1065, 1147, 1395, 1665, 1775, 2201, 2325, 2627, 2775, 3195, 3441, 5325, 5735, 6603, 6975, 7881, 8325, 10323, 11005, 13135, 15975, 17205, 19809, 23643, 28675, 33015, 39405, 51615, 55025, 65675, 81437, 86025, 99045, 118215, 165075, 197025, 244311, 258075, 407185, 495225, 591075, 732933, 1221555, 2035925, 3664665, 6107775, 18323325]

約数ペア:

[(1, 18323325), (3, 6107775), (5, 3664665), (9, 2035925), (15, 1221555), (25, 732933), (31, 591075), (37, 495225), (45, 407185), (71, 258075), (75, 244311), (93, 197025), (111, 165075), (155, 118215), (185, 99045), (213, 86025), (225, 81437), (279, 65675), (333, 55025), (355, 51615), (465, 39405), (555, 33015), (639, 28675), (775, 23643), (925, 19809), (1065, 17205), (1147, 15975), (1395, 13135), (1665, 11005), (1775, 10323), (2201, 8325), (2325, 7881), (2627, 6975), (2775, 6603), (3195, 5735), (3441, 5325)]