199311640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{431}}^1\times {\mathrm{1051}}^1$

素因数の和:1504

約数の個数: 64

約数和(自身を含む): 490821120

約数和(自身を除く): 291509480

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 431, 440, 862, 1051, 1724, 2102, 2155, 3448, 4204, 4310, 4741, 5255, 8408, 8620, 9482, 10510, 11561, 17240, 18964, 21020, 23122, 23705, 37928, 42040, 46244, 47410, 57805, 92488, 94820, 115610, 189640, 231220, 452981, 462440, 905962, 1811924, 2264905, 3623848, 4529810, 4982791, 9059620, 9965582, 18119240, 19931164, 24913955, 39862328, 49827910, 99655820, 199311640]

約数ペア:

[(1, 199311640), (2, 99655820), (4, 49827910), (5, 39862328), (8, 24913955), (10, 19931164), (11, 18119240), (20, 9965582), (22, 9059620), (40, 4982791), (44, 4529810), (55, 3623848), (88, 2264905), (110, 1811924), (220, 905962), (431, 462440), (440, 452981), (862, 231220), (1051, 189640), (1724, 115610), (2102, 94820), (2155, 92488), (3448, 57805), (4204, 47410), (4310, 46244), (4741, 42040), (5255, 37928), (8408, 23705), (8620, 23122), (9482, 21020), (10510, 18964), (11561, 17240)]