20124668840

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1489}}^1\times {\mathrm{4759}}^1$

素因数の和:6330

約数の個数: 64

約数和(自身を含む): 45958752000

約数和(自身を除く): 25834083160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 1489, 2840, 2978, 4759, 5956, 7445, 9518, 11912, 14890, 19036, 23795, 29780, 38072, 47590, 59560, 95180, 105719, 190360, 211438, 337889, 422876, 528595, 675778, 845752, 1057190, 1351556, 1689445, 2114380, 2703112, 3378890, 4228760, 6757780, 7086151, 13515560, 14172302, 28344604, 35430755, 56689208, 70861510, 141723020, 283446040, 503116721, 1006233442, 2012466884, 2515583605, 4024933768, 5031167210, 10062334420, 20124668840]

約数ペア:

[(1, 20124668840), (2, 10062334420), (4, 5031167210), (5, 4024933768), (8, 2515583605), (10, 2012466884), (20, 1006233442), (40, 503116721), (71, 283446040), (142, 141723020), (284, 70861510), (355, 56689208), (568, 35430755), (710, 28344604), (1420, 14172302), (1489, 13515560), (2840, 7086151), (2978, 6757780), (4759, 4228760), (5956, 3378890), (7445, 2703112), (9518, 2114380), (11912, 1689445), (14890, 1351556), (19036, 1057190), (23795, 845752), (29780, 675778), (38072, 528595), (47590, 422876), (59560, 337889), (95180, 211438), (105719, 190360)]