81764030

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{2741}}^1$

素因数の和:2924

約数の個数: 32

約数和(自身を含む): 155964960

約数和(自身を除く): 74200930

約数列:

[1, 2, 5, 10, 19, 38, 95, 157, 190, 314, 785, 1570, 2741, 2983, 5482, 5966, 13705, 14915, 27410, 29830, 52079, 104158, 260395, 430337, 520790, 860674, 2151685, 4303370, 8176403, 16352806, 40882015, 81764030]

約数ペア:

[(1, 81764030), (2, 40882015), (5, 16352806), (10, 8176403), (19, 4303370), (38, 2151685), (95, 860674), (157, 520790), (190, 430337), (314, 260395), (785, 104158), (1570, 52079), (2741, 29830), (2983, 27410), (5482, 14915), (5966, 13705)]