245853520

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{491}}^1\times {\mathrm{569}}^1$

素因数の和:1084

約数の個数: 80

約数和(自身を含む): 625942080

約数和(自身を除く): 380088560

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 491, 569, 880, 982, 1138, 1964, 2276, 2455, 2845, 3928, 4552, 4910, 5401, 5690, 6259, 7856, 9104, 9820, 10802, 11380, 12518, 19640, 21604, 22760, 25036, 27005, 31295, 39280, 43208, 45520, 50072, 54010, 62590, 86416, 100144, 108020, 125180, 216040, 250360, 279379, 432080, 500720, 558758, 1117516, 1396895, 2235032, 2793790, 3073169, 4470064, 5587580, 6146338, 11175160, 12292676, 15365845, 22350320, 24585352, 30731690, 49170704, 61463380, 122926760, 245853520]

約数ペア:

[(1, 245853520), (2, 122926760), (4, 61463380), (5, 49170704), (8, 30731690), (10, 24585352), (11, 22350320), (16, 15365845), (20, 12292676), (22, 11175160), (40, 6146338), (44, 5587580), (55, 4470064), (80, 3073169), (88, 2793790), (110, 2235032), (176, 1396895), (220, 1117516), (440, 558758), (491, 500720), (569, 432080), (880, 279379), (982, 250360), (1138, 216040), (1964, 125180), (2276, 108020), (2455, 100144), (2845, 86416), (3928, 62590), (4552, 54010), (4910, 50072), (5401, 45520), (5690, 43208), (6259, 39280), (7856, 31295), (9104, 27005), (9820, 25036), (10802, 22760), (11380, 21604), (12518, 19640)]