256225177520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1021}}^1\times {\mathrm{241303}}^1$

素因数の和:242350

約数の個数: 80

約数和(自身を含む): 642179439552

約数和(自身を除く): 385954262032

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1021, 1040, 2042, 4084, 5105, 8168, 10210, 13273, 16336, 20420, 26546, 40840, 53092, 66365, 81680, 106184, 132730, 212368, 241303, 265460, 482606, 530920, 965212, 1061840, 1206515, 1930424, 2413030, 3136939, 3860848, 4826060, 6273878, 9652120, 12547756, 15684695, 19304240, 25095512, 31369390, 50191024, 62738780, 125477560, 246370363, 250955120, 492740726, 985481452, 1231851815, 1970962904, 2463703630, 3202814719, 3941925808, 4927407260, 6405629438, 9854814520, 12811258876, 16014073595, 19709629040, 25622517752, 32028147190, 51245035504, 64056294380, 128112588760, 256225177520]

約数ペア:

[(1, 256225177520), (2, 128112588760), (4, 64056294380), (5, 51245035504), (8, 32028147190), (10, 25622517752), (13, 19709629040), (16, 16014073595), (20, 12811258876), (26, 9854814520), (40, 6405629438), (52, 4927407260), (65, 3941925808), (80, 3202814719), (104, 2463703630), (130, 1970962904), (208, 1231851815), (260, 985481452), (520, 492740726), (1021, 250955120), (1040, 246370363), (2042, 125477560), (4084, 62738780), (5105, 50191024), (8168, 31369390), (10210, 25095512), (13273, 19304240), (16336, 15684695), (20420, 12547756), (26546, 9652120), (40840, 6273878), (53092, 4826060), (66365, 3860848), (81680, 3136939), (106184, 2413030), (132730, 1930424), (212368, 1206515), (241303, 1061840), (265460, 965212), (482606, 530920)]