248820920

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{87613}}^1$

素因数の和:87695

約数の個数: 32

約数和(自身を含む): 567738720

約数和(自身を除く): 318917800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 87613, 175226, 350452, 438065, 700904, 876130, 1752260, 3504520, 6220523, 12441046, 24882092, 31102615, 49764184, 62205230, 124410460, 248820920]

約数ペア:

[(1, 248820920), (2, 124410460), (4, 62205230), (5, 49764184), (8, 31102615), (10, 24882092), (20, 12441046), (40, 6220523), (71, 3504520), (142, 1752260), (284, 876130), (355, 700904), (568, 438065), (710, 350452), (1420, 175226), (2840, 87613)]