71049020

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{10357}}^1$

素因数の和:10387

約数の個数: 48

約数和(自身を含む): 174014400

約数和(自身を除く): 102965380

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 3430, 6860, 10357, 20714, 41428, 51785, 72499, 103570, 144998, 207140, 289996, 362495, 507493, 724990, 1014986, 1449980, 2029972, 2537465, 3552451, 5074930, 7104902, 10149860, 14209804, 17762255, 35524510, 71049020]

約数ペア:

[(1, 71049020), (2, 35524510), (4, 17762255), (5, 14209804), (7, 10149860), (10, 7104902), (14, 5074930), (20, 3552451), (28, 2537465), (35, 2029972), (49, 1449980), (70, 1014986), (98, 724990), (140, 507493), (196, 362495), (245, 289996), (343, 207140), (490, 144998), (686, 103570), (980, 72499), (1372, 51785), (1715, 41428), (3430, 20714), (6860, 10357)]