2789712920

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{151}}^1\times {\mathrm{269}}^1$

素因数の和:549

約数の個数: 128

約数和(自身を含む): 6781449600

約数和(自身を除く): 3991736680

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 101, 136, 151, 170, 202, 269, 302, 340, 404, 505, 538, 604, 680, 755, 808, 1010, 1076, 1208, 1345, 1510, 1717, 2020, 2152, 2567, 2690, 3020, 3434, 4040, 4573, 5134, 5380, 6040, 6868, 8585, 9146, 10268, 10760, 12835, 13736, 15251, 17170, 18292, 20536, 22865, 25670, 27169, 30502, 34340, 36584, 40619, 45730, 51340, 54338, 61004, 68680, 76255, 81238, 91460, 102680, 108676, 122008, 135845, 152510, 162476, 182920, 203095, 217352, 259267, 271690, 305020, 324952, 406190, 461873, 518534, 543380, 610040, 690523, 812380, 923746, 1037068, 1086760, 1296335, 1381046, 1624760, 1847492, 2074136, 2309365, 2592670, 2762092, 3452615, 3694984, 4102519, 4618730, 5185340, 5524184, 6905230, 8205038, 9237460, 10370680, 13810460, 16410076, 18474920, 20512595, 27620920, 32820152, 41025190, 69742823, 82050380, 139485646, 164100760, 278971292, 348714115, 557942584, 697428230, 1394856460, 2789712920]

約数ペア:

[(1, 2789712920), (2, 1394856460), (4, 697428230), (5, 557942584), (8, 348714115), (10, 278971292), (17, 164100760), (20, 139485646), (34, 82050380), (40, 69742823), (68, 41025190), (85, 32820152), (101, 27620920), (136, 20512595), (151, 18474920), (170, 16410076), (202, 13810460), (269, 10370680), (302, 9237460), (340, 8205038), (404, 6905230), (505, 5524184), (538, 5185340), (604, 4618730), (680, 4102519), (755, 3694984), (808, 3452615), (1010, 2762092), (1076, 2592670), (1208, 2309365), (1345, 2074136), (1510, 1847492), (1717, 1624760), (2020, 1381046), (2152, 1296335), (2567, 1086760), (2690, 1037068), (3020, 923746), (3434, 812380), (4040, 690523), (4573, 610040), (5134, 543380), (5380, 518534), (6040, 461873), (6868, 406190), (8585, 324952), (9146, 305020), (10268, 271690), (10760, 259267), (12835, 217352), (13736, 203095), (15251, 182920), (17170, 162476), (18292, 152510), (20536, 135845), (22865, 122008), (25670, 108676), (27169, 102680), (30502, 91460), (34340, 81238), (36584, 76255), (40619, 68680), (45730, 61004), (51340, 54338)]