12958540

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{1889}}^1$

素因数の和:1919

約数の個数: 48

約数和(自身を含む): 31752000

約数和(自身を除く): 18793460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 1889, 3430, 3778, 6860, 7556, 9445, 13223, 18890, 26446, 37780, 52892, 66115, 92561, 132230, 185122, 264460, 370244, 462805, 647927, 925610, 1295854, 1851220, 2591708, 3239635, 6479270, 12958540]

約数ペア:

[(1, 12958540), (2, 6479270), (4, 3239635), (5, 2591708), (7, 1851220), (10, 1295854), (14, 925610), (20, 647927), (28, 462805), (35, 370244), (49, 264460), (70, 185122), (98, 132230), (140, 92561), (196, 66115), (245, 52892), (343, 37780), (490, 26446), (686, 18890), (980, 13223), (1372, 9445), (1715, 7556), (1889, 6860), (3430, 3778)]