15720255

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{191}}^1$

素因数の和:292

約数の個数: 48

約数和(自身を含む): 28753920

約数和(自身を除く): 13033665

約数列:

[1, 3, 5, 9, 15, 31, 45, 59, 93, 155, 177, 191, 279, 295, 465, 531, 573, 885, 955, 1395, 1719, 1829, 2655, 2865, 5487, 5921, 8595, 9145, 11269, 16461, 17763, 27435, 29605, 33807, 53289, 56345, 82305, 88815, 101421, 169035, 266445, 349339, 507105, 1048017, 1746695, 3144051, 5240085, 15720255]

約数ペア:

[(1, 15720255), (3, 5240085), (5, 3144051), (9, 1746695), (15, 1048017), (31, 507105), (45, 349339), (59, 266445), (93, 169035), (155, 101421), (177, 88815), (191, 82305), (279, 56345), (295, 53289), (465, 33807), (531, 29605), (573, 27435), (885, 17763), (955, 16461), (1395, 11269), (1719, 9145), (1829, 8595), (2655, 5921), (2865, 5487)]