256489716

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{9281}}^1$

素因数の和:9349

約数の個数: 72

約数和(自身を含む): 711075456

約数和(自身を除く): 454585740

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 47, 49, 84, 94, 98, 141, 147, 188, 196, 282, 294, 329, 564, 588, 658, 987, 1316, 1974, 2303, 3948, 4606, 6909, 9212, 9281, 13818, 18562, 27636, 27843, 37124, 55686, 64967, 111372, 129934, 194901, 259868, 389802, 436207, 454769, 779604, 872414, 909538, 1308621, 1364307, 1744828, 1819076, 2617242, 2728614, 3053449, 5234484, 5457228, 6106898, 9160347, 12213796, 18320694, 21374143, 36641388, 42748286, 64122429, 85496572, 128244858, 256489716]

約数ペア:

[(1, 256489716), (2, 128244858), (3, 85496572), (4, 64122429), (6, 42748286), (7, 36641388), (12, 21374143), (14, 18320694), (21, 12213796), (28, 9160347), (42, 6106898), (47, 5457228), (49, 5234484), (84, 3053449), (94, 2728614), (98, 2617242), (141, 1819076), (147, 1744828), (188, 1364307), (196, 1308621), (282, 909538), (294, 872414), (329, 779604), (564, 454769), (588, 436207), (658, 389802), (987, 259868), (1316, 194901), (1974, 129934), (2303, 111372), (3948, 64967), (4606, 55686), (6909, 37124), (9212, 27843), (9281, 27636), (13818, 18562)]