81457320

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{96973}}^1$

素因数の和:96994

約数の個数: 64

約数和(自身を含む): 279285120

約数和(自身を除く): 197827800

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 96973, 193946, 290919, 387892, 484865, 581838, 678811, 775784, 969730, 1163676, 1357622, 1454595, 1939460, 2036433, 2327352, 2715244, 2909190, 3394055, 3878920, 4072866, 5430488, 5818380, 6788110, 8145732, 10182165, 11636760, 13576220, 16291464, 20364330, 27152440, 40728660, 81457320]

約数ペア:

[(1, 81457320), (2, 40728660), (3, 27152440), (4, 20364330), (5, 16291464), (6, 13576220), (7, 11636760), (8, 10182165), (10, 8145732), (12, 6788110), (14, 5818380), (15, 5430488), (20, 4072866), (21, 3878920), (24, 3394055), (28, 2909190), (30, 2715244), (35, 2327352), (40, 2036433), (42, 1939460), (56, 1454595), (60, 1357622), (70, 1163676), (84, 969730), (105, 775784), (120, 678811), (140, 581838), (168, 484865), (210, 387892), (280, 290919), (420, 193946), (840, 96973)]