8801780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{349}}^1$

素因数の和:468

約数の個数: 48

約数和(自身を含む): 20168400

約数和(自身を除く): 11366620

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 97, 130, 194, 260, 349, 388, 485, 698, 970, 1261, 1396, 1745, 1940, 2522, 3490, 4537, 5044, 6305, 6980, 9074, 12610, 18148, 22685, 25220, 33853, 45370, 67706, 90740, 135412, 169265, 338530, 440089, 677060, 880178, 1760356, 2200445, 4400890, 8801780]

約数ペア:

[(1, 8801780), (2, 4400890), (4, 2200445), (5, 1760356), (10, 880178), (13, 677060), (20, 440089), (26, 338530), (52, 169265), (65, 135412), (97, 90740), (130, 67706), (194, 45370), (260, 33853), (349, 25220), (388, 22685), (485, 18148), (698, 12610), (970, 9074), (1261, 6980), (1396, 6305), (1745, 5044), (1940, 4537), (2522, 3490)]