71205820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{113}}^1\times {\mathrm{643}}^1$

素因数の和:779

約数の個数: 72

約数和(自身を含む): 175757904

約数和(自身を除く): 104552084

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 113, 140, 196, 226, 245, 452, 490, 565, 643, 791, 980, 1130, 1286, 1582, 2260, 2572, 3164, 3215, 3955, 4501, 5537, 6430, 7910, 9002, 11074, 12860, 15820, 18004, 22148, 22505, 27685, 31507, 45010, 55370, 63014, 72659, 90020, 110740, 126028, 145318, 157535, 290636, 315070, 363295, 508613, 630140, 726590, 1017226, 1453180, 2034452, 2543065, 3560291, 5086130, 7120582, 10172260, 14241164, 17801455, 35602910, 71205820]

約数ペア:

[(1, 71205820), (2, 35602910), (4, 17801455), (5, 14241164), (7, 10172260), (10, 7120582), (14, 5086130), (20, 3560291), (28, 2543065), (35, 2034452), (49, 1453180), (70, 1017226), (98, 726590), (113, 630140), (140, 508613), (196, 363295), (226, 315070), (245, 290636), (452, 157535), (490, 145318), (565, 126028), (643, 110740), (791, 90020), (980, 72659), (1130, 63014), (1286, 55370), (1582, 45010), (2260, 31507), (2572, 27685), (3164, 22505), (3215, 22148), (3955, 18004), (4501, 15820), (5537, 12860), (6430, 11074), (7910, 9002)]