20958540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{163}}^1\times {\mathrm{2143}}^1$

素因数の和:2318

約数の個数: 48

約数和(自身を含む): 59071488

約数和(自身を除く): 38112948

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 163, 326, 489, 652, 815, 978, 1630, 1956, 2143, 2445, 3260, 4286, 4890, 6429, 8572, 9780, 10715, 12858, 21430, 25716, 32145, 42860, 64290, 128580, 349309, 698618, 1047927, 1397236, 1746545, 2095854, 3493090, 4191708, 5239635, 6986180, 10479270, 20958540]

約数ペア:

[(1, 20958540), (2, 10479270), (3, 6986180), (4, 5239635), (5, 4191708), (6, 3493090), (10, 2095854), (12, 1746545), (15, 1397236), (20, 1047927), (30, 698618), (60, 349309), (163, 128580), (326, 64290), (489, 42860), (652, 32145), (815, 25716), (978, 21430), (1630, 12858), (1956, 10715), (2143, 9780), (2445, 8572), (3260, 6429), (4286, 4890)]