1939420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{1979}}^1$

素因数の和:2002

約数の個数: 36

約数和(自身を含む): 4740120

約数和(自身を除く): 2800700

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 1979, 3958, 7916, 9895, 13853, 19790, 27706, 39580, 55412, 69265, 96971, 138530, 193942, 277060, 387884, 484855, 969710, 1939420]

約数ペア:

[(1, 1939420), (2, 969710), (4, 484855), (5, 387884), (7, 277060), (10, 193942), (14, 138530), (20, 96971), (28, 69265), (35, 55412), (49, 39580), (70, 27706), (98, 19790), (140, 13853), (196, 9895), (245, 7916), (490, 3958), (980, 1979)]