49780400

素因数分解:

$2^4\times 5^2\times {\mathrm{97}}^1\times {\mathrm{1283}}^1$

素因数の和:1398

約数の個数: 60

約数和(自身を含む): 120924552

約数和(自身を除く): 71144152

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 97, 100, 194, 200, 388, 400, 485, 776, 970, 1283, 1552, 1940, 2425, 2566, 3880, 4850, 5132, 6415, 7760, 9700, 10264, 12830, 19400, 20528, 25660, 32075, 38800, 51320, 64150, 102640, 124451, 128300, 248902, 256600, 497804, 513200, 622255, 995608, 1244510, 1991216, 2489020, 3111275, 4978040, 6222550, 9956080, 12445100, 24890200, 49780400]

約数ペア:

[(1, 49780400), (2, 24890200), (4, 12445100), (5, 9956080), (8, 6222550), (10, 4978040), (16, 3111275), (20, 2489020), (25, 1991216), (40, 1244510), (50, 995608), (80, 622255), (97, 513200), (100, 497804), (194, 256600), (200, 248902), (388, 128300), (400, 124451), (485, 102640), (776, 64150), (970, 51320), (1283, 38800), (1552, 32075), (1940, 25660), (2425, 20528), (2566, 19400), (3880, 12830), (4850, 10264), (5132, 9700), (6415, 7760)]