20493210

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{229}}^1$

素因数の和:415

約数の個数: 64

約数和(自身を含む): 52329600

約数和(自身を除く): 31836390

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 30, 38, 57, 95, 114, 157, 190, 229, 285, 314, 458, 471, 570, 687, 785, 942, 1145, 1374, 1570, 2290, 2355, 2983, 3435, 4351, 4710, 5966, 6870, 8702, 8949, 13053, 14915, 17898, 21755, 26106, 29830, 35953, 43510, 44745, 65265, 71906, 89490, 107859, 130530, 179765, 215718, 359530, 539295, 683107, 1078590, 1366214, 2049321, 3415535, 4098642, 6831070, 10246605, 20493210]

約数ペア:

[(1, 20493210), (2, 10246605), (3, 6831070), (5, 4098642), (6, 3415535), (10, 2049321), (15, 1366214), (19, 1078590), (30, 683107), (38, 539295), (57, 359530), (95, 215718), (114, 179765), (157, 130530), (190, 107859), (229, 89490), (285, 71906), (314, 65265), (458, 44745), (471, 43510), (570, 35953), (687, 29830), (785, 26106), (942, 21755), (1145, 17898), (1374, 14915), (1570, 13053), (2290, 8949), (2355, 8702), (2983, 6870), (3435, 5966), (4351, 4710)]