18498620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{229}}^1\times {\mathrm{577}}^1$

素因数の和:822

約数の個数: 48

約数和(自身を含む): 44667840

約数和(自身を除く): 26169220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 229, 458, 577, 916, 1145, 1154, 1603, 2290, 2308, 2885, 3206, 4039, 4580, 5770, 6412, 8015, 8078, 11540, 16030, 16156, 20195, 32060, 40390, 80780, 132133, 264266, 528532, 660665, 924931, 1321330, 1849862, 2642660, 3699724, 4624655, 9249310, 18498620]

約数ペア:

[(1, 18498620), (2, 9249310), (4, 4624655), (5, 3699724), (7, 2642660), (10, 1849862), (14, 1321330), (20, 924931), (28, 660665), (35, 528532), (70, 264266), (140, 132133), (229, 80780), (458, 40390), (577, 32060), (916, 20195), (1145, 16156), (1154, 16030), (1603, 11540), (2290, 8078), (2308, 8015), (2885, 6412), (3206, 5770), (4039, 4580)]