31808140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17477}}^1$

素因数の和:17506

約数の個数: 48

約数和(自身を含む): 82216512

約数和(自身を除く): 50408372

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 17477, 34954, 69908, 87385, 122339, 174770, 227201, 244678, 349540, 454402, 489356, 611695, 908804, 1136005, 1223390, 1590407, 2272010, 2446780, 3180814, 4544020, 6361628, 7952035, 15904070, 31808140]

約数ペア:

[(1, 31808140), (2, 15904070), (4, 7952035), (5, 6361628), (7, 4544020), (10, 3180814), (13, 2446780), (14, 2272010), (20, 1590407), (26, 1223390), (28, 1136005), (35, 908804), (52, 611695), (65, 489356), (70, 454402), (91, 349540), (130, 244678), (140, 227201), (182, 174770), (260, 122339), (364, 87385), (455, 69908), (910, 34954), (1820, 17477)]