165220400

素因数分解:

$2^4\times 5^2\times {\mathrm{317}}^1\times {\mathrm{1303}}^1$

素因数の和:1638

約数の個数: 60

約数和(自身を含む): 398499792

約数和(自身を除く): 233279392

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 317, 400, 634, 1268, 1303, 1585, 2536, 2606, 3170, 5072, 5212, 6340, 6515, 7925, 10424, 12680, 13030, 15850, 20848, 25360, 26060, 31700, 32575, 52120, 63400, 65150, 104240, 126800, 130300, 260600, 413051, 521200, 826102, 1652204, 2065255, 3304408, 4130510, 6608816, 8261020, 10326275, 16522040, 20652550, 33044080, 41305100, 82610200, 165220400]

約数ペア:

[(1, 165220400), (2, 82610200), (4, 41305100), (5, 33044080), (8, 20652550), (10, 16522040), (16, 10326275), (20, 8261020), (25, 6608816), (40, 4130510), (50, 3304408), (80, 2065255), (100, 1652204), (200, 826102), (317, 521200), (400, 413051), (634, 260600), (1268, 130300), (1303, 126800), (1585, 104240), (2536, 65150), (2606, 63400), (3170, 52120), (5072, 32575), (5212, 31700), (6340, 26060), (6515, 25360), (7925, 20848), (10424, 15850), (12680, 13030)]