20478656

素因数分解:

$2^6\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1531}}^1$

素因数の和:1573

約数の個数: 56

約数和(自身を含む): 46695360

約数和(自身を除く): 26216704

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, 1531, 1672, 3062, 3344, 6124, 6688, 12248, 13376, 16841, 24496, 29089, 33682, 48992, 58178, 67364, 97984, 116356, 134728, 232712, 269456, 319979, 465424, 538912, 639958, 930848, 1077824, 1279916, 1861696, 2559832, 5119664, 10239328, 20478656]

約数ペア:

[(1, 20478656), (2, 10239328), (4, 5119664), (8, 2559832), (11, 1861696), (16, 1279916), (19, 1077824), (22, 930848), (32, 639958), (38, 538912), (44, 465424), (64, 319979), (76, 269456), (88, 232712), (152, 134728), (176, 116356), (209, 97984), (304, 67364), (352, 58178), (418, 48992), (608, 33682), (704, 29089), (836, 24496), (1216, 16841), (1531, 13376), (1672, 12248), (3062, 6688), (3344, 6124)]