20889390420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{263}}^1\times {\mathrm{441263}}^1$

素因数の和:441541

約数の個数: 72

約数和(自身を含む): 63605558016

約数和(自身を除く): 42716167596

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 263, 526, 789, 1052, 1315, 1578, 2367, 2630, 3156, 3945, 4734, 5260, 7890, 9468, 11835, 15780, 23670, 47340, 441263, 882526, 1323789, 1765052, 2206315, 2647578, 3971367, 4412630, 5295156, 6618945, 7942734, 8825260, 13237890, 15885468, 19856835, 26475780, 39713670, 79427340, 116052169, 232104338, 348156507, 464208676, 580260845, 696313014, 1044469521, 1160521690, 1392626028, 1740782535, 2088939042, 2321043380, 3481565070, 4177878084, 5222347605, 6963130140, 10444695210, 20889390420]

約数ペア:

[(1, 20889390420), (2, 10444695210), (3, 6963130140), (4, 5222347605), (5, 4177878084), (6, 3481565070), (9, 2321043380), (10, 2088939042), (12, 1740782535), (15, 1392626028), (18, 1160521690), (20, 1044469521), (30, 696313014), (36, 580260845), (45, 464208676), (60, 348156507), (90, 232104338), (180, 116052169), (263, 79427340), (526, 39713670), (789, 26475780), (1052, 19856835), (1315, 15885468), (1578, 13237890), (2367, 8825260), (2630, 7942734), (3156, 6618945), (3945, 5295156), (4734, 4412630), (5260, 3971367), (7890, 2647578), (9468, 2206315), (11835, 1765052), (15780, 1323789), (23670, 882526), (47340, 441263)]