20071760

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{6781}}^1$

素因数の和:6831

約数の個数: 40

約数和(自身を含む): 47935176

約数和(自身を除く): 27863416

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 185, 296, 370, 592, 740, 1480, 2960, 6781, 13562, 27124, 33905, 54248, 67810, 108496, 135620, 250897, 271240, 501794, 542480, 1003588, 1254485, 2007176, 2508970, 4014352, 5017940, 10035880, 20071760]

約数ペア:

[(1, 20071760), (2, 10035880), (4, 5017940), (5, 4014352), (8, 2508970), (10, 2007176), (16, 1254485), (20, 1003588), (37, 542480), (40, 501794), (74, 271240), (80, 250897), (148, 135620), (185, 108496), (296, 67810), (370, 54248), (592, 33905), (740, 27124), (1480, 13562), (2960, 6781)]