72484000

素因数分解:

$2^5\times 5^3\times {\mathrm{18121}}^1$

素因数の和:18146

約数の個数: 48

約数和(自身を含む): 178103016

約数和(自身を除く): 105619016

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 800, 1000, 2000, 4000, 18121, 36242, 72484, 90605, 144968, 181210, 289936, 362420, 453025, 579872, 724840, 906050, 1449680, 1812100, 2265125, 2899360, 3624200, 4530250, 7248400, 9060500, 14496800, 18121000, 36242000, 72484000]

約数ペア:

[(1, 72484000), (2, 36242000), (4, 18121000), (5, 14496800), (8, 9060500), (10, 7248400), (16, 4530250), (20, 3624200), (25, 2899360), (32, 2265125), (40, 1812100), (50, 1449680), (80, 906050), (100, 724840), (125, 579872), (160, 453025), (200, 362420), (250, 289936), (400, 181210), (500, 144968), (800, 90605), (1000, 72484), (2000, 36242), (4000, 18121)]