61386920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{271}}^1\times {\mathrm{809}}^1$

素因数の和:1098

約数の個数: 64

約数和(自身を含む): 158630400

約数和(自身を除く): 97243480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 271, 280, 542, 809, 1084, 1355, 1618, 1897, 2168, 2710, 3236, 3794, 4045, 5420, 5663, 6472, 7588, 8090, 9485, 10840, 11326, 15176, 16180, 18970, 22652, 28315, 32360, 37940, 45304, 56630, 75880, 113260, 219239, 226520, 438478, 876956, 1096195, 1534673, 1753912, 2192390, 3069346, 4384780, 6138692, 7673365, 8769560, 12277384, 15346730, 30693460, 61386920]

約数ペア:

[(1, 61386920), (2, 30693460), (4, 15346730), (5, 12277384), (7, 8769560), (8, 7673365), (10, 6138692), (14, 4384780), (20, 3069346), (28, 2192390), (35, 1753912), (40, 1534673), (56, 1096195), (70, 876956), (140, 438478), (271, 226520), (280, 219239), (542, 113260), (809, 75880), (1084, 56630), (1355, 45304), (1618, 37940), (1897, 32360), (2168, 28315), (2710, 22652), (3236, 18970), (3794, 16180), (4045, 15176), (5420, 11326), (5663, 10840), (6472, 9485), (7588, 8090)]