180989830

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{431}}^1\times {\mathrm{857}}^1$

素因数の和:1309

約数の個数: 48

約数和(自身を含む): 380293056

約数和(自身を除く): 199303226

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 431, 490, 857, 862, 1714, 2155, 3017, 4285, 4310, 5999, 6034, 8570, 11998, 15085, 21119, 29995, 30170, 41993, 42238, 59990, 83986, 105595, 209965, 211190, 369367, 419930, 738734, 1846835, 2585569, 3693670, 5171138, 12927845, 18098983, 25855690, 36197966, 90494915, 180989830]

約数ペア:

[(1, 180989830), (2, 90494915), (5, 36197966), (7, 25855690), (10, 18098983), (14, 12927845), (35, 5171138), (49, 3693670), (70, 2585569), (98, 1846835), (245, 738734), (431, 419930), (490, 369367), (857, 211190), (862, 209965), (1714, 105595), (2155, 83986), (3017, 59990), (4285, 42238), (4310, 41993), (5999, 30170), (6034, 29995), (8570, 21119), (11998, 15085)]