12389720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{44249}}^1$

素因数の和:44267

約数の個数: 32

約数和(自身を含む): 31860000

約数和(自身を除く): 19470280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 44249, 88498, 176996, 221245, 309743, 353992, 442490, 619486, 884980, 1238972, 1548715, 1769960, 2477944, 3097430, 6194860, 12389720]

約数ペア:

[(1, 12389720), (2, 6194860), (4, 3097430), (5, 2477944), (7, 1769960), (8, 1548715), (10, 1238972), (14, 884980), (20, 619486), (28, 442490), (35, 353992), (40, 309743), (56, 221245), (70, 176996), (140, 88498), (280, 44249)]