196171820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{127}}^1\times {\mathrm{457}}^1$

素因数の和:619

約数の個数: 72

約数和(自身を含む): 450584064

約数和(自身を除く): 254412244

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 127, 130, 169, 254, 260, 338, 457, 508, 635, 676, 845, 914, 1270, 1651, 1690, 1828, 2285, 2540, 3302, 3380, 4570, 5941, 6604, 8255, 9140, 11882, 16510, 21463, 23764, 29705, 33020, 42926, 58039, 59410, 77233, 85852, 107315, 116078, 118820, 154466, 214630, 232156, 290195, 308932, 386165, 429260, 580390, 754507, 772330, 1160780, 1509014, 1544660, 3018028, 3772535, 7545070, 9808591, 15090140, 19617182, 39234364, 49042955, 98085910, 196171820]

約数ペア:

[(1, 196171820), (2, 98085910), (4, 49042955), (5, 39234364), (10, 19617182), (13, 15090140), (20, 9808591), (26, 7545070), (52, 3772535), (65, 3018028), (127, 1544660), (130, 1509014), (169, 1160780), (254, 772330), (260, 754507), (338, 580390), (457, 429260), (508, 386165), (635, 308932), (676, 290195), (845, 232156), (914, 214630), (1270, 154466), (1651, 118820), (1690, 116078), (1828, 107315), (2285, 85852), (2540, 77233), (3302, 59410), (3380, 58039), (4570, 42926), (5941, 33020), (6604, 29705), (8255, 23764), (9140, 21463), (11882, 16510)]