72721320

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{86573}}^1$

素因数の和:86594

約数の個数: 64

約数和(自身を含む): 249333120

約数和(自身を除く): 176611800

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, 86573, 173146, 259719, 346292, 432865, 519438, 606011, 692584, 865730, 1038876, 1212022, 1298595, 1731460, 1818033, 2077752, 2424044, 2597190, 3030055, 3462920, 3636066, 4848088, 5194380, 6060110, 7272132, 9090165, 10388760, 12120220, 14544264, 18180330, 24240440, 36360660, 72721320]

約数ペア:

[(1, 72721320), (2, 36360660), (3, 24240440), (4, 18180330), (5, 14544264), (6, 12120220), (7, 10388760), (8, 9090165), (10, 7272132), (12, 6060110), (14, 5194380), (15, 4848088), (20, 3636066), (21, 3462920), (24, 3030055), (28, 2597190), (30, 2424044), (35, 2077752), (40, 1818033), (42, 1731460), (56, 1298595), (60, 1212022), (70, 1038876), (84, 865730), (105, 692584), (120, 606011), (140, 519438), (168, 432865), (210, 346292), (280, 259719), (420, 173146), (840, 86573)]