81840010

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{557}}^1\times {\mathrm{2099}}^1$

素因数の和:2670

約数の個数: 32

約数和(自身を含む): 168739200

約数和(自身を除く): 86899190

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 557, 1114, 2099, 2785, 3899, 4198, 5570, 7798, 10495, 14693, 19495, 20990, 29386, 38990, 73465, 146930, 1169143, 2338286, 5845715, 8184001, 11691430, 16368002, 40920005, 81840010]

約数ペア:

[(1, 81840010), (2, 40920005), (5, 16368002), (7, 11691430), (10, 8184001), (14, 5845715), (35, 2338286), (70, 1169143), (557, 146930), (1114, 73465), (2099, 38990), (2785, 29386), (3899, 20990), (4198, 19495), (5570, 14693), (7798, 10495)]