2021115740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{113}}^1\times {\mathrm{18251}}^1$

素因数の和:18387

約数の個数: 72

約数和(自身を含む): 4981262832

約数和(自身を除く): 2960147092

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 113, 140, 196, 226, 245, 452, 490, 565, 791, 980, 1130, 1582, 2260, 3164, 3955, 5537, 7910, 11074, 15820, 18251, 22148, 27685, 36502, 55370, 73004, 91255, 110740, 127757, 182510, 255514, 365020, 511028, 638785, 894299, 1277570, 1788598, 2062363, 2555140, 3577196, 4124726, 4471495, 8249452, 8942990, 10311815, 14436541, 17885980, 20623630, 28873082, 41247260, 57746164, 72182705, 101055787, 144365410, 202111574, 288730820, 404223148, 505278935, 1010557870, 2021115740]

約数ペア:

[(1, 2021115740), (2, 1010557870), (4, 505278935), (5, 404223148), (7, 288730820), (10, 202111574), (14, 144365410), (20, 101055787), (28, 72182705), (35, 57746164), (49, 41247260), (70, 28873082), (98, 20623630), (113, 17885980), (140, 14436541), (196, 10311815), (226, 8942990), (245, 8249452), (452, 4471495), (490, 4124726), (565, 3577196), (791, 2555140), (980, 2062363), (1130, 1788598), (1582, 1277570), (2260, 894299), (3164, 638785), (3955, 511028), (5537, 365020), (7910, 255514), (11074, 182510), (15820, 127757), (18251, 110740), (22148, 91255), (27685, 73004), (36502, 55370)]