2556260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2$

素因数の和:97

約数の個数: 72

約数和(自身を含む): 6672960

約数和(自身を除く): 4116700

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 31, 35, 38, 62, 70, 76, 95, 124, 133, 140, 155, 190, 217, 266, 310, 380, 434, 532, 589, 620, 665, 868, 961, 1085, 1178, 1330, 1922, 2170, 2356, 2660, 2945, 3844, 4123, 4340, 4805, 5890, 6727, 8246, 9610, 11780, 13454, 16492, 18259, 19220, 20615, 26908, 33635, 36518, 41230, 67270, 73036, 82460, 91295, 127813, 134540, 182590, 255626, 365180, 511252, 639065, 1278130, 2556260]

約数ペア:

[(1, 2556260), (2, 1278130), (4, 639065), (5, 511252), (7, 365180), (10, 255626), (14, 182590), (19, 134540), (20, 127813), (28, 91295), (31, 82460), (35, 73036), (38, 67270), (62, 41230), (70, 36518), (76, 33635), (95, 26908), (124, 20615), (133, 19220), (140, 18259), (155, 16492), (190, 13454), (217, 11780), (266, 9610), (310, 8246), (380, 6727), (434, 5890), (532, 4805), (589, 4340), (620, 4123), (665, 3844), (868, 2945), (961, 2660), (1085, 2356), (1178, 2170), (1330, 1922)]