1621318900

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^2\times {\mathrm{56101}}^1$

素因数の和:56149

約数の個数: 54

約数和(自身を含む): 3737459138

約数和(自身を除く): 2116140238

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 170, 289, 340, 425, 578, 850, 1156, 1445, 1700, 2890, 5780, 7225, 14450, 28900, 56101, 112202, 224404, 280505, 561010, 953717, 1122020, 1402525, 1907434, 2805050, 3814868, 4768585, 5610100, 9537170, 16213189, 19074340, 23842925, 32426378, 47685850, 64852756, 81065945, 95371700, 162131890, 324263780, 405329725, 810659450, 1621318900]

約数ペア:

[(1, 1621318900), (2, 810659450), (4, 405329725), (5, 324263780), (10, 162131890), (17, 95371700), (20, 81065945), (25, 64852756), (34, 47685850), (50, 32426378), (68, 23842925), (85, 19074340), (100, 16213189), (170, 9537170), (289, 5610100), (340, 4768585), (425, 3814868), (578, 2805050), (850, 1907434), (1156, 1402525), (1445, 1122020), (1700, 953717), (2890, 561010), (5780, 280505), (7225, 224404), (14450, 112202), (28900, 56101)]