20544080680

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{3461}}^1\times {\mathrm{4787}}^1$

素因数の和:8290

約数の個数: 64

約数和(自身を含む): 47739041280

約数和(自身を除く): 27194960600

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 3461, 4787, 6922, 9574, 13844, 17305, 19148, 23935, 27688, 34610, 38296, 47870, 69220, 95740, 107291, 138440, 148397, 191480, 214582, 296794, 429164, 536455, 593588, 741985, 858328, 1072910, 1187176, 1483970, 2145820, 2967940, 4291640, 5935880, 16567807, 33135614, 66271228, 82839035, 132542456, 165678070, 331356140, 513602017, 662712280, 1027204034, 2054408068, 2568010085, 4108816136, 5136020170, 10272040340, 20544080680]

約数ペア:

[(1, 20544080680), (2, 10272040340), (4, 5136020170), (5, 4108816136), (8, 2568010085), (10, 2054408068), (20, 1027204034), (31, 662712280), (40, 513602017), (62, 331356140), (124, 165678070), (155, 132542456), (248, 82839035), (310, 66271228), (620, 33135614), (1240, 16567807), (3461, 5935880), (4787, 4291640), (6922, 2967940), (9574, 2145820), (13844, 1483970), (17305, 1187176), (19148, 1072910), (23935, 858328), (27688, 741985), (34610, 593588), (38296, 536455), (47870, 429164), (69220, 296794), (95740, 214582), (107291, 191480), (138440, 148397)]