28724445

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{349}}^1$

素因数の和:450

約数の個数: 48

約数和(自身を含む): 52416000

約数和(自身を除く): 23691555

約数列:

[1, 3, 5, 9, 15, 31, 45, 59, 93, 155, 177, 279, 295, 349, 465, 531, 885, 1047, 1395, 1745, 1829, 2655, 3141, 5235, 5487, 9145, 10819, 15705, 16461, 20591, 27435, 32457, 54095, 61773, 82305, 97371, 102955, 162285, 185319, 308865, 486855, 638321, 926595, 1914963, 3191605, 5744889, 9574815, 28724445]

約数ペア:

[(1, 28724445), (3, 9574815), (5, 5744889), (9, 3191605), (15, 1914963), (31, 926595), (45, 638321), (59, 486855), (93, 308865), (155, 185319), (177, 162285), (279, 102955), (295, 97371), (349, 82305), (465, 61773), (531, 54095), (885, 32457), (1047, 27435), (1395, 20591), (1745, 16461), (1829, 15705), (2655, 10819), (3141, 9145), (5235, 5487)]