20351584

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{179}}^1$

素因数の和:236

約数の個数: 96

約数和(自身を含む): 48988800

約数和(自身を除く): 28637216

約数列:

[1, 2, 4, 8, 11, 16, 17, 19, 22, 32, 34, 38, 44, 68, 76, 88, 136, 152, 176, 179, 187, 209, 272, 304, 323, 352, 358, 374, 418, 544, 608, 646, 716, 748, 836, 1292, 1432, 1496, 1672, 1969, 2584, 2864, 2992, 3043, 3344, 3401, 3553, 3938, 5168, 5728, 5984, 6086, 6688, 6802, 7106, 7876, 10336, 12172, 13604, 14212, 15752, 24344, 27208, 28424, 31504, 33473, 37411, 48688, 54416, 56848, 57817, 63008, 66946, 74822, 97376, 108832, 113696, 115634, 133892, 149644, 231268, 267784, 299288, 462536, 535568, 598576, 635987, 925072, 1071136, 1197152, 1271974, 1850144, 2543948, 5087896, 10175792, 20351584]

約数ペア:

[(1, 20351584), (2, 10175792), (4, 5087896), (8, 2543948), (11, 1850144), (16, 1271974), (17, 1197152), (19, 1071136), (22, 925072), (32, 635987), (34, 598576), (38, 535568), (44, 462536), (68, 299288), (76, 267784), (88, 231268), (136, 149644), (152, 133892), (176, 115634), (179, 113696), (187, 108832), (209, 97376), (272, 74822), (304, 66946), (323, 63008), (352, 57817), (358, 56848), (374, 54416), (418, 48688), (544, 37411), (608, 33473), (646, 31504), (716, 28424), (748, 27208), (836, 24344), (1292, 15752), (1432, 14212), (1496, 13604), (1672, 12172), (1969, 10336), (2584, 7876), (2864, 7106), (2992, 6802), (3043, 6688), (3344, 6086), (3401, 5984), (3553, 5728), (3938, 5168)]