26811280

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{569}}^1$

素因数の和:632

約数の個数: 80

約数和(自身を含む): 67852800

約数和(自身を除く): 41041520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 38, 40, 62, 76, 80, 95, 124, 152, 155, 190, 248, 304, 310, 380, 496, 569, 589, 620, 760, 1138, 1178, 1240, 1520, 2276, 2356, 2480, 2845, 2945, 4552, 4712, 5690, 5890, 9104, 9424, 10811, 11380, 11780, 17639, 21622, 22760, 23560, 35278, 43244, 45520, 47120, 54055, 70556, 86488, 88195, 108110, 141112, 172976, 176390, 216220, 282224, 335141, 352780, 432440, 670282, 705560, 864880, 1340564, 1411120, 1675705, 2681128, 3351410, 5362256, 6702820, 13405640, 26811280]

約数ペア:

[(1, 26811280), (2, 13405640), (4, 6702820), (5, 5362256), (8, 3351410), (10, 2681128), (16, 1675705), (19, 1411120), (20, 1340564), (31, 864880), (38, 705560), (40, 670282), (62, 432440), (76, 352780), (80, 335141), (95, 282224), (124, 216220), (152, 176390), (155, 172976), (190, 141112), (248, 108110), (304, 88195), (310, 86488), (380, 70556), (496, 54055), (569, 47120), (589, 45520), (620, 43244), (760, 35278), (1138, 23560), (1178, 22760), (1240, 21622), (1520, 17639), (2276, 11780), (2356, 11380), (2480, 10811), (2845, 9424), (2945, 9104), (4552, 5890), (4712, 5690)]