280995780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{11621}}^1$

素因数の和:11677

約数の個数: 96

約数和(自身を含む): 874718208

約数和(自身を除く): 593722428

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 31, 39, 52, 60, 62, 65, 78, 93, 124, 130, 155, 156, 186, 195, 260, 310, 372, 390, 403, 465, 620, 780, 806, 930, 1209, 1612, 1860, 2015, 2418, 4030, 4836, 6045, 8060, 11621, 12090, 23242, 24180, 34863, 46484, 58105, 69726, 116210, 139452, 151073, 174315, 232420, 302146, 348630, 360251, 453219, 604292, 697260, 720502, 755365, 906438, 1080753, 1441004, 1510730, 1801255, 1812876, 2161506, 2266095, 3021460, 3602510, 4323012, 4532190, 4683263, 5403765, 7205020, 9064380, 9366526, 10807530, 14049789, 18733052, 21615060, 23416315, 28099578, 46832630, 56199156, 70248945, 93665260, 140497890, 280995780]

約数ペア:

[(1, 280995780), (2, 140497890), (3, 93665260), (4, 70248945), (5, 56199156), (6, 46832630), (10, 28099578), (12, 23416315), (13, 21615060), (15, 18733052), (20, 14049789), (26, 10807530), (30, 9366526), (31, 9064380), (39, 7205020), (52, 5403765), (60, 4683263), (62, 4532190), (65, 4323012), (78, 3602510), (93, 3021460), (124, 2266095), (130, 2161506), (155, 1812876), (156, 1801255), (186, 1510730), (195, 1441004), (260, 1080753), (310, 906438), (372, 755365), (390, 720502), (403, 697260), (465, 604292), (620, 453219), (780, 360251), (806, 348630), (930, 302146), (1209, 232420), (1612, 174315), (1860, 151073), (2015, 139452), (2418, 116210), (4030, 69726), (4836, 58105), (6045, 46484), (8060, 34863), (11621, 24180), (12090, 23242)]