142739360

素因数分解:

$2^5\times 5^1\times {\mathrm{43}}^1\times {\mathrm{20747}}^1$

素因数の和:20805

約数の個数: 48

約数和(自身を含む): 345080736

約数和(自身を除く): 202341376

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 80, 86, 160, 172, 215, 344, 430, 688, 860, 1376, 1720, 3440, 6880, 20747, 41494, 82988, 103735, 165976, 207470, 331952, 414940, 663904, 829880, 892121, 1659760, 1784242, 3319520, 3568484, 4460605, 7136968, 8921210, 14273936, 17842420, 28547872, 35684840, 71369680, 142739360]

約数ペア:

[(1, 142739360), (2, 71369680), (4, 35684840), (5, 28547872), (8, 17842420), (10, 14273936), (16, 8921210), (20, 7136968), (32, 4460605), (40, 3568484), (43, 3319520), (80, 1784242), (86, 1659760), (160, 892121), (172, 829880), (215, 663904), (344, 414940), (430, 331952), (688, 207470), (860, 165976), (1376, 103735), (1720, 82988), (3440, 41494), (6880, 20747)]