20231504

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{1091}}^1$

素因数の和:1179

約数の個数: 40

約数和(自身を含む): 41976480

約数和(自身を除く): 21744976

約数列:

[1, 2, 4, 8, 16, 19, 38, 61, 76, 122, 152, 244, 304, 488, 976, 1091, 1159, 2182, 2318, 4364, 4636, 8728, 9272, 17456, 18544, 20729, 41458, 66551, 82916, 133102, 165832, 266204, 331664, 532408, 1064816, 1264469, 2528938, 5057876, 10115752, 20231504]

約数ペア:

[(1, 20231504), (2, 10115752), (4, 5057876), (8, 2528938), (16, 1264469), (19, 1064816), (38, 532408), (61, 331664), (76, 266204), (122, 165832), (152, 133102), (244, 82916), (304, 66551), (488, 41458), (976, 20729), (1091, 18544), (1159, 17456), (2182, 9272), (2318, 8728), (4364, 4636)]