220193860

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{491}}^1\times {\mathrm{1319}}^1$

素因数の和:1836

約数の個数: 48

約数和(自身を含む): 490976640

約数和(自身を除く): 270782780

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 491, 982, 1319, 1964, 2455, 2638, 4910, 5276, 6595, 8347, 9820, 13190, 16694, 22423, 26380, 33388, 41735, 44846, 83470, 89692, 112115, 166940, 224230, 448460, 647629, 1295258, 2590516, 3238145, 6476290, 11009693, 12952580, 22019386, 44038772, 55048465, 110096930, 220193860]

約数ペア:

[(1, 220193860), (2, 110096930), (4, 55048465), (5, 44038772), (10, 22019386), (17, 12952580), (20, 11009693), (34, 6476290), (68, 3238145), (85, 2590516), (170, 1295258), (340, 647629), (491, 448460), (982, 224230), (1319, 166940), (1964, 112115), (2455, 89692), (2638, 83470), (4910, 44846), (5276, 41735), (6595, 33388), (8347, 26380), (9820, 22423), (13190, 16694)]