20612085455

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{73}}^1\times {\mathrm{15031}}^1$

素因数の和:15156

約数の個数: 48

約数和(自身を含む): 28685745984

約数和(自身を除く): 8073660529

約数列:

[1, 5, 13, 17, 65, 73, 85, 221, 289, 365, 949, 1105, 1241, 1445, 3757, 4745, 6205, 15031, 16133, 18785, 21097, 75155, 80665, 105485, 195403, 255527, 274261, 977015, 1097263, 1277635, 1371305, 3321851, 4343959, 5486315, 14264419, 16609255, 18653471, 21719795, 56471467, 71322095, 93267355, 242495123, 282357335, 317109007, 1212475615, 1585545035, 4122417091, 20612085455]

約数ペア:

[(1, 20612085455), (5, 4122417091), (13, 1585545035), (17, 1212475615), (65, 317109007), (73, 282357335), (85, 242495123), (221, 93267355), (289, 71322095), (365, 56471467), (949, 21719795), (1105, 18653471), (1241, 16609255), (1445, 14264419), (3757, 5486315), (4745, 4343959), (6205, 3321851), (15031, 1371305), (16133, 1277635), (18785, 1097263), (21097, 977015), (75155, 274261), (80665, 255527), (105485, 195403)]