20726972500

素因数分解:

$2^2\times 5^4\times {\mathrm{13}}^1\times {\mathrm{719}}^1\times {\mathrm{887}}^1$

素因数の和:1643

約数の個数: 120

約数和(自身を含む): 48935335680

約数和(自身を除く): 28208363180

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 125, 130, 250, 260, 325, 500, 625, 650, 719, 887, 1250, 1300, 1438, 1625, 1774, 2500, 2876, 3250, 3548, 3595, 4435, 6500, 7190, 8125, 8870, 9347, 11531, 14380, 16250, 17740, 17975, 18694, 22175, 23062, 32500, 35950, 37388, 44350, 46124, 46735, 57655, 71900, 88700, 89875, 93470, 110875, 115310, 179750, 186940, 221750, 230620, 233675, 288275, 359500, 443500, 449375, 467350, 554375, 576550, 637753, 898750, 934700, 1108750, 1153100, 1168375, 1275506, 1441375, 1797500, 2217500, 2336750, 2551012, 2882750, 3188765, 4673500, 5765500, 5841875, 6377530, 7206875, 8290789, 11683750, 12755060, 14413750, 15943825, 16581578, 23367500, 28827500, 31887650, 33163156, 41453945, 63775300, 79719125, 82907890, 159438250, 165815780, 207269725, 318876500, 398595625, 414539450, 797191250, 829078900, 1036348625, 1594382500, 2072697250, 4145394500, 5181743125, 10363486250, 20726972500]

約数ペア:

[(1, 20726972500), (2, 10363486250), (4, 5181743125), (5, 4145394500), (10, 2072697250), (13, 1594382500), (20, 1036348625), (25, 829078900), (26, 797191250), (50, 414539450), (52, 398595625), (65, 318876500), (100, 207269725), (125, 165815780), (130, 159438250), (250, 82907890), (260, 79719125), (325, 63775300), (500, 41453945), (625, 33163156), (650, 31887650), (719, 28827500), (887, 23367500), (1250, 16581578), (1300, 15943825), (1438, 14413750), (1625, 12755060), (1774, 11683750), (2500, 8290789), (2876, 7206875), (3250, 6377530), (3548, 5841875), (3595, 5765500), (4435, 4673500), (6500, 3188765), (7190, 2882750), (8125, 2551012), (8870, 2336750), (9347, 2217500), (11531, 1797500), (14380, 1441375), (16250, 1275506), (17740, 1168375), (17975, 1153100), (18694, 1108750), (22175, 934700), (23062, 898750), (32500, 637753), (35950, 576550), (37388, 554375), (44350, 467350), (46124, 449375), (46735, 443500), (57655, 359500), (71900, 288275), (88700, 233675), (89875, 230620), (93470, 221750), (110875, 186940), (115310, 179750)]