25649920

素因数分解:

$2^8\times 5^1\times {\mathrm{29}}^1\times {\mathrm{691}}^1$

素因数の和:741

約数の個数: 72

約数和(自身を含む): 63650160

約数和(自身を除く): 38000240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 58, 64, 80, 116, 128, 145, 160, 232, 256, 290, 320, 464, 580, 640, 691, 928, 1160, 1280, 1382, 1856, 2320, 2764, 3455, 3712, 4640, 5528, 6910, 7424, 9280, 11056, 13820, 18560, 20039, 22112, 27640, 37120, 40078, 44224, 55280, 80156, 88448, 100195, 110560, 160312, 176896, 200390, 221120, 320624, 400780, 442240, 641248, 801560, 884480, 1282496, 1603120, 2564992, 3206240, 5129984, 6412480, 12824960, 25649920]

約数ペア:

[(1, 25649920), (2, 12824960), (4, 6412480), (5, 5129984), (8, 3206240), (10, 2564992), (16, 1603120), (20, 1282496), (29, 884480), (32, 801560), (40, 641248), (58, 442240), (64, 400780), (80, 320624), (116, 221120), (128, 200390), (145, 176896), (160, 160312), (232, 110560), (256, 100195), (290, 88448), (320, 80156), (464, 55280), (580, 44224), (640, 40078), (691, 37120), (928, 27640), (1160, 22112), (1280, 20039), (1382, 18560), (1856, 13820), (2320, 11056), (2764, 9280), (3455, 7424), (3712, 6910), (4640, 5528)]