209472520

素因数分解:

$2^3\times 5^1\times {\mathrm{1489}}^1\times {\mathrm{3517}}^1$

素因数の和:5017

約数の個数: 32

約数和(自身を含む): 471763800

約数和(自身を除く): 262291280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1489, 2978, 3517, 5956, 7034, 7445, 11912, 14068, 14890, 17585, 28136, 29780, 35170, 59560, 70340, 140680, 5236813, 10473626, 20947252, 26184065, 41894504, 52368130, 104736260, 209472520]

約数ペア:

[(1, 209472520), (2, 104736260), (4, 52368130), (5, 41894504), (8, 26184065), (10, 20947252), (20, 10473626), (40, 5236813), (1489, 140680), (2978, 70340), (3517, 59560), (5956, 35170), (7034, 29780), (7445, 28136), (11912, 17585), (14068, 14890)]