15572020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{953}}^1$

素因数の和:1024

約数の個数: 48

約数和(自身を含む): 35259840

約数和(自身を除く): 19687820

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 43, 76, 86, 95, 172, 190, 215, 380, 430, 817, 860, 953, 1634, 1906, 3268, 3812, 4085, 4765, 8170, 9530, 16340, 18107, 19060, 36214, 40979, 72428, 81958, 90535, 163916, 181070, 204895, 362140, 409790, 778601, 819580, 1557202, 3114404, 3893005, 7786010, 15572020]

約数ペア:

[(1, 15572020), (2, 7786010), (4, 3893005), (5, 3114404), (10, 1557202), (19, 819580), (20, 778601), (38, 409790), (43, 362140), (76, 204895), (86, 181070), (95, 163916), (172, 90535), (190, 81958), (215, 72428), (380, 40979), (430, 36214), (817, 19060), (860, 18107), (953, 16340), (1634, 9530), (1906, 8170), (3268, 4765), (3812, 4085)]