66639920

素因数分解:

$2^4\times 5^1\times {\mathrm{293}}^1\times {\mathrm{2843}}^1$

素因数の和:3149

約数の個数: 40

約数和(自身を含む): 155521296

約数和(自身を除く): 88881376

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 293, 586, 1172, 1465, 2344, 2843, 2930, 4688, 5686, 5860, 11372, 11720, 14215, 22744, 23440, 28430, 45488, 56860, 113720, 227440, 832999, 1665998, 3331996, 4164995, 6663992, 8329990, 13327984, 16659980, 33319960, 66639920]

約数ペア:

[(1, 66639920), (2, 33319960), (4, 16659980), (5, 13327984), (8, 8329990), (10, 6663992), (16, 4164995), (20, 3331996), (40, 1665998), (80, 832999), (293, 227440), (586, 113720), (1172, 56860), (1465, 45488), (2344, 28430), (2843, 23440), (2930, 22744), (4688, 14215), (5686, 11720), (5860, 11372)]