78447780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{4493}}^1$

素因数の和:4605

約数の個数: 72

約数和(自身を含む): 240464952

約数和(自身を除く): 162017172

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 97, 180, 194, 291, 388, 485, 582, 873, 970, 1164, 1455, 1746, 1940, 2910, 3492, 4365, 4493, 5820, 8730, 8986, 13479, 17460, 17972, 22465, 26958, 40437, 44930, 53916, 67395, 80874, 89860, 134790, 161748, 202185, 269580, 404370, 435821, 808740, 871642, 1307463, 1743284, 2179105, 2614926, 3922389, 4358210, 5229852, 6537315, 7844778, 8716420, 13074630, 15689556, 19611945, 26149260, 39223890, 78447780]

約数ペア:

[(1, 78447780), (2, 39223890), (3, 26149260), (4, 19611945), (5, 15689556), (6, 13074630), (9, 8716420), (10, 7844778), (12, 6537315), (15, 5229852), (18, 4358210), (20, 3922389), (30, 2614926), (36, 2179105), (45, 1743284), (60, 1307463), (90, 871642), (97, 808740), (180, 435821), (194, 404370), (291, 269580), (388, 202185), (485, 161748), (582, 134790), (873, 89860), (970, 80874), (1164, 67395), (1455, 53916), (1746, 44930), (1940, 40437), (2910, 26958), (3492, 22465), (4365, 17972), (4493, 17460), (5820, 13479), (8730, 8986)]