20145201580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{81619}}^1$

素因数の和:81719

約数の個数: 96

約数和(自身を含む): 50680143360

約数和(自身を除く): 30534941780

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 43, 70, 82, 86, 140, 164, 172, 205, 215, 287, 301, 410, 430, 574, 602, 820, 860, 1148, 1204, 1435, 1505, 1763, 2870, 3010, 3526, 5740, 6020, 7052, 8815, 12341, 17630, 24682, 35260, 49364, 61705, 81619, 123410, 163238, 246820, 326476, 408095, 571333, 816190, 1142666, 1632380, 2285332, 2856665, 3346379, 3509617, 5713330, 6692758, 7019234, 11426660, 13385516, 14038468, 16731895, 17548085, 23424653, 24567319, 33463790, 35096170, 46849306, 49134638, 66927580, 70192340, 93698612, 98269276, 117123265, 122836595, 143894297, 234246530, 245673190, 287788594, 468493060, 491346380, 575577188, 719471485, 1007260079, 1438942970, 2014520158, 2877885940, 4029040316, 5036300395, 10072600790, 20145201580]

約数ペア:

[(1, 20145201580), (2, 10072600790), (4, 5036300395), (5, 4029040316), (7, 2877885940), (10, 2014520158), (14, 1438942970), (20, 1007260079), (28, 719471485), (35, 575577188), (41, 491346380), (43, 468493060), (70, 287788594), (82, 245673190), (86, 234246530), (140, 143894297), (164, 122836595), (172, 117123265), (205, 98269276), (215, 93698612), (287, 70192340), (301, 66927580), (410, 49134638), (430, 46849306), (574, 35096170), (602, 33463790), (820, 24567319), (860, 23424653), (1148, 17548085), (1204, 16731895), (1435, 14038468), (1505, 13385516), (1763, 11426660), (2870, 7019234), (3010, 6692758), (3526, 5713330), (5740, 3509617), (6020, 3346379), (7052, 2856665), (8815, 2285332), (12341, 1632380), (17630, 1142666), (24682, 816190), (35260, 571333), (49364, 408095), (61705, 326476), (81619, 246820), (123410, 163238)]