20818320

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{86743}}^1$

素因数の和:86759

約数の個数: 40

約数和(自身を含む): 64537536

約数和(自身を除く): 43719216

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 86743, 173486, 260229, 346972, 433715, 520458, 693944, 867430, 1040916, 1301145, 1387888, 1734860, 2081832, 2602290, 3469720, 4163664, 5204580, 6939440, 10409160, 20818320]

約数ペア:

[(1, 20818320), (2, 10409160), (3, 6939440), (4, 5204580), (5, 4163664), (6, 3469720), (8, 2602290), (10, 2081832), (12, 1734860), (15, 1387888), (16, 1301145), (20, 1040916), (24, 867430), (30, 693944), (40, 520458), (48, 433715), (60, 346972), (80, 260229), (120, 173486), (240, 86743)]