20803140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{2459}}^1$

素因数の和:2521

約数の個数: 72

約数和(自身を含む): 64471680

約数和(自身を除く): 43668540

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 47, 60, 90, 94, 141, 180, 188, 235, 282, 423, 470, 564, 705, 846, 940, 1410, 1692, 2115, 2459, 2820, 4230, 4918, 7377, 8460, 9836, 12295, 14754, 22131, 24590, 29508, 36885, 44262, 49180, 73770, 88524, 110655, 115573, 147540, 221310, 231146, 346719, 442620, 462292, 577865, 693438, 1040157, 1155730, 1386876, 1733595, 2080314, 2311460, 3467190, 4160628, 5200785, 6934380, 10401570, 20803140]

約数ペア:

[(1, 20803140), (2, 10401570), (3, 6934380), (4, 5200785), (5, 4160628), (6, 3467190), (9, 2311460), (10, 2080314), (12, 1733595), (15, 1386876), (18, 1155730), (20, 1040157), (30, 693438), (36, 577865), (45, 462292), (47, 442620), (60, 346719), (90, 231146), (94, 221310), (141, 147540), (180, 115573), (188, 110655), (235, 88524), (282, 73770), (423, 49180), (470, 44262), (564, 36885), (705, 29508), (846, 24590), (940, 22131), (1410, 14754), (1692, 12295), (2115, 9836), (2459, 8460), (2820, 7377), (4230, 4918)]