20197439248

素因数分解:

$2^4\times 7^1\times {\mathrm{281}}^1\times {\mathrm{431}}^1\times {\mathrm{1489}}^1$

素因数の和:2216

約数の個数: 80

約数和(自身を含む): 45016404480

約数和(自身を除く): 24818965232

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 281, 431, 562, 862, 1124, 1489, 1724, 1967, 2248, 2978, 3017, 3448, 3934, 4496, 5956, 6034, 6896, 7868, 10423, 11912, 12068, 15736, 20846, 23824, 24136, 31472, 41692, 48272, 83384, 121111, 166768, 242222, 418409, 484444, 641759, 836818, 847777, 968888, 1283518, 1673636, 1695554, 1937776, 2567036, 2928863, 3347272, 3391108, 4492313, 5134072, 5857726, 6694544, 6782216, 8984626, 10268144, 11715452, 13564432, 17969252, 23430904, 35938504, 46861808, 71877008, 180334279, 360668558, 721337116, 1262339953, 1442674232, 2524679906, 2885348464, 5049359812, 10098719624, 20197439248]

約数ペア:

[(1, 20197439248), (2, 10098719624), (4, 5049359812), (7, 2885348464), (8, 2524679906), (14, 1442674232), (16, 1262339953), (28, 721337116), (56, 360668558), (112, 180334279), (281, 71877008), (431, 46861808), (562, 35938504), (862, 23430904), (1124, 17969252), (1489, 13564432), (1724, 11715452), (1967, 10268144), (2248, 8984626), (2978, 6782216), (3017, 6694544), (3448, 5857726), (3934, 5134072), (4496, 4492313), (5956, 3391108), (6034, 3347272), (6896, 2928863), (7868, 2567036), (10423, 1937776), (11912, 1695554), (12068, 1673636), (15736, 1283518), (20846, 968888), (23824, 847777), (24136, 836818), (31472, 641759), (41692, 484444), (48272, 418409), (83384, 242222), (121111, 166768)]