20178570920

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{196519}}^1$

素因数の和:196698

約数の個数: 64

約数和(自身を含む): 48391084800

約数和(自身を除く): 28212513880

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 151, 170, 302, 340, 604, 680, 755, 1208, 1510, 2567, 3020, 5134, 6040, 10268, 12835, 20536, 25670, 51340, 102680, 196519, 393038, 786076, 982595, 1572152, 1965190, 3340823, 3930380, 6681646, 7860760, 13363292, 16704115, 26726584, 29674369, 33408230, 59348738, 66816460, 118697476, 133632920, 148371845, 237394952, 296743690, 504464273, 593487380, 1008928546, 1186974760, 2017857092, 2522321365, 4035714184, 5044642730, 10089285460, 20178570920]

約数ペア:

[(1, 20178570920), (2, 10089285460), (4, 5044642730), (5, 4035714184), (8, 2522321365), (10, 2017857092), (17, 1186974760), (20, 1008928546), (34, 593487380), (40, 504464273), (68, 296743690), (85, 237394952), (136, 148371845), (151, 133632920), (170, 118697476), (302, 66816460), (340, 59348738), (604, 33408230), (680, 29674369), (755, 26726584), (1208, 16704115), (1510, 13363292), (2567, 7860760), (3020, 6681646), (5134, 3930380), (6040, 3340823), (10268, 1965190), (12835, 1572152), (20536, 982595), (25670, 786076), (51340, 393038), (102680, 196519)]