20539408024

素因数分解:

$2^3\times {\mathrm{17}}^2\times {\mathrm{109}}^1\times {\mathrm{149}}^1\times {\mathrm{547}}^1$

素因数の和:845

約数の個数: 96

約数和(自身を含む): 41638410000

約数和(自身を除く): 21099001976

約数列:

[1, 2, 4, 8, 17, 34, 68, 109, 136, 149, 218, 289, 298, 436, 547, 578, 596, 872, 1094, 1156, 1192, 1853, 2188, 2312, 2533, 3706, 4376, 5066, 7412, 9299, 10132, 14824, 16241, 18598, 20264, 31501, 32482, 37196, 43061, 59623, 63002, 64964, 74392, 81503, 86122, 119246, 126004, 129928, 158083, 163006, 172244, 238492, 252008, 276097, 316166, 326012, 344488, 476984, 552194, 632332, 652024, 1013591, 1104388, 1264664, 1385551, 2027182, 2208776, 2771102, 4054364, 4693649, 5542204, 8108728, 8883827, 9387298, 11084408, 17231047, 17767654, 18774596, 23554367, 34462094, 35535308, 37549192, 47108734, 68924188, 71070616, 94217468, 137848376, 151025059, 188434936, 302050118, 604100236, 1208200472, 2567426003, 5134852006, 10269704012, 20539408024]

約数ペア:

[(1, 20539408024), (2, 10269704012), (4, 5134852006), (8, 2567426003), (17, 1208200472), (34, 604100236), (68, 302050118), (109, 188434936), (136, 151025059), (149, 137848376), (218, 94217468), (289, 71070616), (298, 68924188), (436, 47108734), (547, 37549192), (578, 35535308), (596, 34462094), (872, 23554367), (1094, 18774596), (1156, 17767654), (1192, 17231047), (1853, 11084408), (2188, 9387298), (2312, 8883827), (2533, 8108728), (3706, 5542204), (4376, 4693649), (5066, 4054364), (7412, 2771102), (9299, 2208776), (10132, 2027182), (14824, 1385551), (16241, 1264664), (18598, 1104388), (20264, 1013591), (31501, 652024), (32482, 632332), (37196, 552194), (43061, 476984), (59623, 344488), (63002, 326012), (64964, 316166), (74392, 276097), (81503, 252008), (86122, 238492), (119246, 172244), (126004, 163006), (129928, 158083)]