90042800

素因数分解:

$2^4\times 5^2\times {\mathrm{229}}^1\times {\mathrm{983}}^1$

素因数の和:1230

約数の個数: 60

約数和(自身を含む): 217493520

約数和(自身を除く): 127450720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 229, 400, 458, 916, 983, 1145, 1832, 1966, 2290, 3664, 3932, 4580, 4915, 5725, 7864, 9160, 9830, 11450, 15728, 18320, 19660, 22900, 24575, 39320, 45800, 49150, 78640, 91600, 98300, 196600, 225107, 393200, 450214, 900428, 1125535, 1800856, 2251070, 3601712, 4502140, 5627675, 9004280, 11255350, 18008560, 22510700, 45021400, 90042800]

約数ペア:

[(1, 90042800), (2, 45021400), (4, 22510700), (5, 18008560), (8, 11255350), (10, 9004280), (16, 5627675), (20, 4502140), (25, 3601712), (40, 2251070), (50, 1800856), (80, 1125535), (100, 900428), (200, 450214), (229, 393200), (400, 225107), (458, 196600), (916, 98300), (983, 91600), (1145, 78640), (1832, 49150), (1966, 45800), (2290, 39320), (3664, 24575), (3932, 22900), (4580, 19660), (4915, 18320), (5725, 15728), (7864, 11450), (9160, 9830)]