221993728

素因数分解:

$2^8\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{2543}}^1$

素因数の和:2601

約数の個数: 72

約数和(自身を含む): 499193856

約数和(自身を除く): 277200128

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 32, 44, 62, 64, 88, 124, 128, 176, 248, 256, 341, 352, 496, 682, 704, 992, 1364, 1408, 1984, 2543, 2728, 2816, 3968, 5086, 5456, 7936, 10172, 10912, 20344, 21824, 27973, 40688, 43648, 55946, 78833, 81376, 87296, 111892, 157666, 162752, 223784, 315332, 325504, 447568, 630664, 651008, 867163, 895136, 1261328, 1734326, 1790272, 2522656, 3468652, 3580544, 5045312, 6937304, 7161088, 10090624, 13874608, 20181248, 27749216, 55498432, 110996864, 221993728]

約数ペア:

[(1, 221993728), (2, 110996864), (4, 55498432), (8, 27749216), (11, 20181248), (16, 13874608), (22, 10090624), (31, 7161088), (32, 6937304), (44, 5045312), (62, 3580544), (64, 3468652), (88, 2522656), (124, 1790272), (128, 1734326), (176, 1261328), (248, 895136), (256, 867163), (341, 651008), (352, 630664), (496, 447568), (682, 325504), (704, 315332), (992, 223784), (1364, 162752), (1408, 157666), (1984, 111892), (2543, 87296), (2728, 81376), (2816, 78833), (3968, 55946), (5086, 43648), (5456, 40688), (7936, 27973), (10172, 21824), (10912, 20344)]