20342090960

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{353}}^1\times {\mathrm{17569}}^1$

素因数の和:17976

約数の個数: 80

約数和(自身を含む): 48588921360

約数和(自身を除く): 28246830400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 353, 410, 656, 706, 820, 1412, 1640, 1765, 2824, 3280, 3530, 5648, 7060, 14120, 14473, 17569, 28240, 28946, 35138, 57892, 70276, 72365, 87845, 115784, 140552, 144730, 175690, 231568, 281104, 289460, 351380, 578920, 702760, 720329, 1157840, 1405520, 1440658, 2881316, 3601645, 5762632, 6201857, 7203290, 11525264, 12403714, 14406580, 24807428, 28813160, 31009285, 49614856, 57626320, 62018570, 99229712, 124037140, 248074280, 254276137, 496148560, 508552274, 1017104548, 1271380685, 2034209096, 2542761370, 4068418192, 5085522740, 10171045480, 20342090960]

約数ペア:

[(1, 20342090960), (2, 10171045480), (4, 5085522740), (5, 4068418192), (8, 2542761370), (10, 2034209096), (16, 1271380685), (20, 1017104548), (40, 508552274), (41, 496148560), (80, 254276137), (82, 248074280), (164, 124037140), (205, 99229712), (328, 62018570), (353, 57626320), (410, 49614856), (656, 31009285), (706, 28813160), (820, 24807428), (1412, 14406580), (1640, 12403714), (1765, 11525264), (2824, 7203290), (3280, 6201857), (3530, 5762632), (5648, 3601645), (7060, 2881316), (14120, 1440658), (14473, 1405520), (17569, 1157840), (28240, 720329), (28946, 702760), (35138, 578920), (57892, 351380), (70276, 289460), (72365, 281104), (87845, 231568), (115784, 175690), (140552, 144730)]