129969500

素因数分解:

$2^2\times 5^3\times {\mathrm{19}}^1\times {\mathrm{13681}}^1$

素因数の和:13719

約数の個数: 48

約数和(自身を含む): 298814880

約数和(自身を除く): 168845380

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 125, 190, 250, 380, 475, 500, 950, 1900, 2375, 4750, 9500, 13681, 27362, 54724, 68405, 136810, 259939, 273620, 342025, 519878, 684050, 1039756, 1299695, 1368100, 1710125, 2599390, 3420250, 5198780, 6498475, 6840500, 12996950, 25993900, 32492375, 64984750, 129969500]

約数ペア:

[(1, 129969500), (2, 64984750), (4, 32492375), (5, 25993900), (10, 12996950), (19, 6840500), (20, 6498475), (25, 5198780), (38, 3420250), (50, 2599390), (76, 1710125), (95, 1368100), (100, 1299695), (125, 1039756), (190, 684050), (250, 519878), (380, 342025), (475, 273620), (500, 259939), (950, 136810), (1900, 68405), (2375, 54724), (4750, 27362), (9500, 13681)]