204881480

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{1301}}^1$

素因数の和:1470

約数の個数: 64

約数和(自身を含む): 479969280

約数和(自身を除く): 275087800

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 127, 155, 248, 254, 310, 508, 620, 635, 1016, 1240, 1270, 1301, 2540, 2602, 3937, 5080, 5204, 6505, 7874, 10408, 13010, 15748, 19685, 26020, 31496, 39370, 40331, 52040, 78740, 80662, 157480, 161324, 165227, 201655, 322648, 330454, 403310, 660908, 806620, 826135, 1321816, 1613240, 1652270, 3304540, 5122037, 6609080, 10244074, 20488148, 25610185, 40976296, 51220370, 102440740, 204881480]

約数ペア:

[(1, 204881480), (2, 102440740), (4, 51220370), (5, 40976296), (8, 25610185), (10, 20488148), (20, 10244074), (31, 6609080), (40, 5122037), (62, 3304540), (124, 1652270), (127, 1613240), (155, 1321816), (248, 826135), (254, 806620), (310, 660908), (508, 403310), (620, 330454), (635, 322648), (1016, 201655), (1240, 165227), (1270, 161324), (1301, 157480), (2540, 80662), (2602, 78740), (3937, 52040), (5080, 40331), (5204, 39370), (6505, 31496), (7874, 26020), (10408, 19685), (13010, 15748)]