91213780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{21017}}^1$

素因数の和:21064

約数の個数: 48

約数和(自身を含む): 225985536

約数和(自身を除く): 134771756

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 21017, 42034, 84068, 105085, 147119, 210170, 294238, 420340, 588476, 651527, 735595, 1303054, 1471190, 2606108, 2942380, 3257635, 4560689, 6515270, 9121378, 13030540, 18242756, 22803445, 45606890, 91213780]

約数ペア:

[(1, 91213780), (2, 45606890), (4, 22803445), (5, 18242756), (7, 13030540), (10, 9121378), (14, 6515270), (20, 4560689), (28, 3257635), (31, 2942380), (35, 2606108), (62, 1471190), (70, 1303054), (124, 735595), (140, 651527), (155, 588476), (217, 420340), (310, 294238), (434, 210170), (620, 147119), (868, 105085), (1085, 84068), (2170, 42034), (4340, 21017)]