19629260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{941}}^1$

素因数の和:1106

約数の個数: 48

約数和(自身を含む): 47476800

約数和(自身を除く): 27847540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 149, 298, 596, 745, 941, 1043, 1490, 1882, 2086, 2980, 3764, 4172, 4705, 5215, 6587, 9410, 10430, 13174, 18820, 20860, 26348, 32935, 65870, 131740, 140209, 280418, 560836, 701045, 981463, 1402090, 1962926, 2804180, 3925852, 4907315, 9814630, 19629260]

約数ペア:

[(1, 19629260), (2, 9814630), (4, 4907315), (5, 3925852), (7, 2804180), (10, 1962926), (14, 1402090), (20, 981463), (28, 701045), (35, 560836), (70, 280418), (140, 140209), (149, 131740), (298, 65870), (596, 32935), (745, 26348), (941, 20860), (1043, 18820), (1490, 13174), (1882, 10430), (2086, 9410), (2980, 6587), (3764, 5215), (4172, 4705)]