20639168

素因数分解:

$2^6\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1543}}^1$

素因数の和:1585

約数の個数: 56

約数和(自身を含む): 47061120

約数和(自身を除く): 26421952

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 32, 38, 44, 64, 76, 88, 152, 176, 209, 304, 352, 418, 608, 704, 836, 1216, 1543, 1672, 3086, 3344, 6172, 6688, 12344, 13376, 16973, 24688, 29317, 33946, 49376, 58634, 67892, 98752, 117268, 135784, 234536, 271568, 322487, 469072, 543136, 644974, 938144, 1086272, 1289948, 1876288, 2579896, 5159792, 10319584, 20639168]

約数ペア:

[(1, 20639168), (2, 10319584), (4, 5159792), (8, 2579896), (11, 1876288), (16, 1289948), (19, 1086272), (22, 938144), (32, 644974), (38, 543136), (44, 469072), (64, 322487), (76, 271568), (88, 234536), (152, 135784), (176, 117268), (209, 98752), (304, 67892), (352, 58634), (418, 49376), (608, 33946), (704, 29317), (836, 24688), (1216, 16973), (1543, 13376), (1672, 12344), (3086, 6688), (3344, 6172)]