20708736

素因数分解:

$2^7\times 3^1\times {\mathrm{199}}^1\times {\mathrm{271}}^1$

素因数の和:487

約数の個数: 64

約数和(自身を含む): 55488000

約数和(自身を除く): 34779264

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 128, 192, 199, 271, 384, 398, 542, 597, 796, 813, 1084, 1194, 1592, 1626, 2168, 2388, 3184, 3252, 4336, 4776, 6368, 6504, 8672, 9552, 12736, 13008, 17344, 19104, 25472, 26016, 34688, 38208, 52032, 53929, 76416, 104064, 107858, 161787, 215716, 323574, 431432, 647148, 862864, 1294296, 1725728, 2588592, 3451456, 5177184, 6902912, 10354368, 20708736]

約数ペア:

[(1, 20708736), (2, 10354368), (3, 6902912), (4, 5177184), (6, 3451456), (8, 2588592), (12, 1725728), (16, 1294296), (24, 862864), (32, 647148), (48, 431432), (64, 323574), (96, 215716), (128, 161787), (192, 107858), (199, 104064), (271, 76416), (384, 53929), (398, 52032), (542, 38208), (597, 34688), (796, 26016), (813, 25472), (1084, 19104), (1194, 17344), (1592, 13008), (1626, 12736), (2168, 9552), (2388, 8672), (3184, 6504), (3252, 6368), (4336, 4776)]