81568340

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{83233}}^1$

素因数の和:83256

約数の個数: 36

約数和(自身を含む): 199262196

約数和(自身を除く): 117693856

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 83233, 166466, 332932, 416165, 582631, 832330, 1165262, 1664660, 2330524, 2913155, 4078417, 5826310, 8156834, 11652620, 16313668, 20392085, 40784170, 81568340]

約数ペア:

[(1, 81568340), (2, 40784170), (4, 20392085), (5, 16313668), (7, 11652620), (10, 8156834), (14, 5826310), (20, 4078417), (28, 2913155), (35, 2330524), (49, 1664660), (70, 1165262), (98, 832330), (140, 582631), (196, 416165), (245, 332932), (490, 166466), (980, 83233)]