20725952

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{859}}^1$

素因数の和:913

約数の個数: 56

約数和(自身を含む): 45872400

約数和(自身を除く): 25146448

約数列:

[1, 2, 4, 8, 13, 16, 26, 29, 32, 52, 58, 64, 104, 116, 208, 232, 377, 416, 464, 754, 832, 859, 928, 1508, 1718, 1856, 3016, 3436, 6032, 6872, 11167, 12064, 13744, 22334, 24128, 24911, 27488, 44668, 49822, 54976, 89336, 99644, 178672, 199288, 323843, 357344, 398576, 647686, 714688, 797152, 1295372, 1594304, 2590744, 5181488, 10362976, 20725952]

約数ペア:

[(1, 20725952), (2, 10362976), (4, 5181488), (8, 2590744), (13, 1594304), (16, 1295372), (26, 797152), (29, 714688), (32, 647686), (52, 398576), (58, 357344), (64, 323843), (104, 199288), (116, 178672), (208, 99644), (232, 89336), (377, 54976), (416, 49822), (464, 44668), (754, 27488), (832, 24911), (859, 24128), (928, 22334), (1508, 13744), (1718, 12064), (1856, 11167), (3016, 6872), (3436, 6032)]