20930272

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{613}}^1$

素因数の和:731

約数の個数: 48

約数和(自身を含む): 45490032

約数和(自身を除く): 24559760

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 88, 97, 176, 194, 352, 388, 613, 776, 1067, 1226, 1552, 2134, 2452, 3104, 4268, 4904, 6743, 8536, 9808, 13486, 17072, 19616, 26972, 34144, 53944, 59461, 107888, 118922, 215776, 237844, 475688, 654071, 951376, 1308142, 1902752, 2616284, 5232568, 10465136, 20930272]

約数ペア:

[(1, 20930272), (2, 10465136), (4, 5232568), (8, 2616284), (11, 1902752), (16, 1308142), (22, 951376), (32, 654071), (44, 475688), (88, 237844), (97, 215776), (176, 118922), (194, 107888), (352, 59461), (388, 53944), (613, 34144), (776, 26972), (1067, 19616), (1226, 17072), (1552, 13486), (2134, 9808), (2452, 8536), (3104, 6743), (4268, 4904)]