28218525

素因数分解:

$3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{229}}^1$

素因数の和:326

約数の個数: 48

約数和(自身を含む): 49282560

約数和(自身を除く): 21064035

約数列:

[1, 3, 5, 15, 25, 31, 53, 75, 93, 155, 159, 229, 265, 465, 687, 775, 795, 1145, 1325, 1643, 2325, 3435, 3975, 4929, 5725, 7099, 8215, 12137, 17175, 21297, 24645, 35495, 36411, 41075, 60685, 106485, 123225, 177475, 182055, 303425, 376247, 532425, 910275, 1128741, 1881235, 5643705, 9406175, 28218525]

約数ペア:

[(1, 28218525), (3, 9406175), (5, 5643705), (15, 1881235), (25, 1128741), (31, 910275), (53, 532425), (75, 376247), (93, 303425), (155, 182055), (159, 177475), (229, 123225), (265, 106485), (465, 60685), (687, 41075), (775, 36411), (795, 35495), (1145, 24645), (1325, 21297), (1643, 17175), (2325, 12137), (3435, 8215), (3975, 7099), (4929, 5725)]