90590000

素因数分解:

$2^4\times 5^4\times {\mathrm{9059}}^1$

素因数の和:9087

約数の個数: 50

約数和(自身を含む): 219351660

約数和(自身を除く): 128761660

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 625, 1000, 1250, 2000, 2500, 5000, 9059, 10000, 18118, 36236, 45295, 72472, 90590, 144944, 181180, 226475, 362360, 452950, 724720, 905900, 1132375, 1811800, 2264750, 3623600, 4529500, 5661875, 9059000, 11323750, 18118000, 22647500, 45295000, 90590000]

約数ペア:

[(1, 90590000), (2, 45295000), (4, 22647500), (5, 18118000), (8, 11323750), (10, 9059000), (16, 5661875), (20, 4529500), (25, 3623600), (40, 2264750), (50, 1811800), (80, 1132375), (100, 905900), (125, 724720), (200, 452950), (250, 362360), (400, 226475), (500, 181180), (625, 144944), (1000, 90590), (1250, 72472), (2000, 45295), (2500, 36236), (5000, 18118), (9059, 10000)]