12980556

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{257}}^1$

素因数の和:351

約数の個数: 72

約数和(自身を含む): 34935264

約数和(自身を除く): 21954708

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 61, 69, 92, 122, 138, 183, 207, 244, 257, 276, 366, 414, 514, 549, 732, 771, 828, 1028, 1098, 1403, 1542, 2196, 2313, 2806, 3084, 4209, 4626, 5612, 5911, 8418, 9252, 11822, 12627, 15677, 16836, 17733, 23644, 25254, 31354, 35466, 47031, 50508, 53199, 62708, 70932, 94062, 106398, 141093, 188124, 212796, 282186, 360571, 564372, 721142, 1081713, 1442284, 2163426, 3245139, 4326852, 6490278, 12980556]

約数ペア:

[(1, 12980556), (2, 6490278), (3, 4326852), (4, 3245139), (6, 2163426), (9, 1442284), (12, 1081713), (18, 721142), (23, 564372), (36, 360571), (46, 282186), (61, 212796), (69, 188124), (92, 141093), (122, 106398), (138, 94062), (183, 70932), (207, 62708), (244, 53199), (257, 50508), (276, 47031), (366, 35466), (414, 31354), (514, 25254), (549, 23644), (732, 17733), (771, 16836), (828, 15677), (1028, 12627), (1098, 11822), (1403, 9252), (1542, 8418), (2196, 5911), (2313, 5612), (2806, 4626), (3084, 4209)]