20445877608

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{254987}}^1$

素因数の和:255266

約数の個数: 64

約数和(自身を含む): 55260999360

約数和(自身を除く): 34815121752

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 257, 312, 514, 771, 1028, 1542, 2056, 3084, 3341, 6168, 6682, 10023, 13364, 20046, 26728, 40092, 80184, 254987, 509974, 764961, 1019948, 1529922, 2039896, 3059844, 3314831, 6119688, 6629662, 9944493, 13259324, 19888986, 26518648, 39777972, 65531659, 79555944, 131063318, 196594977, 262126636, 393189954, 524253272, 786379908, 851911567, 1572759816, 1703823134, 2555734701, 3407646268, 5111469402, 6815292536, 10222938804, 20445877608]

約数ペア:

[(1, 20445877608), (2, 10222938804), (3, 6815292536), (4, 5111469402), (6, 3407646268), (8, 2555734701), (12, 1703823134), (13, 1572759816), (24, 851911567), (26, 786379908), (39, 524253272), (52, 393189954), (78, 262126636), (104, 196594977), (156, 131063318), (257, 79555944), (312, 65531659), (514, 39777972), (771, 26518648), (1028, 19888986), (1542, 13259324), (2056, 9944493), (3084, 6629662), (3341, 6119688), (6168, 3314831), (6682, 3059844), (10023, 2039896), (13364, 1529922), (20046, 1019948), (26728, 764961), (40092, 509974), (80184, 254987)]