278513300

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{6911}}^1$

素因数の和:6969

約数の個数: 72

約数和(自身を含む): 671956992

約数和(自身を除く): 393443692

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 31, 50, 52, 62, 65, 100, 124, 130, 155, 260, 310, 325, 403, 620, 650, 775, 806, 1300, 1550, 1612, 2015, 3100, 4030, 6911, 8060, 10075, 13822, 20150, 27644, 34555, 40300, 69110, 89843, 138220, 172775, 179686, 214241, 345550, 359372, 428482, 449215, 691100, 856964, 898430, 1071205, 1796860, 2142410, 2246075, 2785133, 4284820, 4492150, 5356025, 5570266, 8984300, 10712050, 11140532, 13925665, 21424100, 27851330, 55702660, 69628325, 139256650, 278513300]

約数ペア:

[(1, 278513300), (2, 139256650), (4, 69628325), (5, 55702660), (10, 27851330), (13, 21424100), (20, 13925665), (25, 11140532), (26, 10712050), (31, 8984300), (50, 5570266), (52, 5356025), (62, 4492150), (65, 4284820), (100, 2785133), (124, 2246075), (130, 2142410), (155, 1796860), (260, 1071205), (310, 898430), (325, 856964), (403, 691100), (620, 449215), (650, 428482), (775, 359372), (806, 345550), (1300, 214241), (1550, 179686), (1612, 172775), (2015, 138220), (3100, 89843), (4030, 69110), (6911, 40300), (8060, 34555), (10075, 27644), (13822, 20150)]