71369680

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{20747}}^1$

素因数の和:20803

約数の個数: 40

約数和(自身を含む): 169801632

約数和(自身を除く): 98431952

約数列:

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

約数ペア:

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