20395664

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{2917}}^1$

素因数の和:2967

約数の個数: 40

約数和(自身を含む): 43419840

約数和(自身を除く): 23024176

約数列:

[1, 2, 4, 8, 16, 19, 23, 38, 46, 76, 92, 152, 184, 304, 368, 437, 874, 1748, 2917, 3496, 5834, 6992, 11668, 23336, 46672, 55423, 67091, 110846, 134182, 221692, 268364, 443384, 536728, 886768, 1073456, 1274729, 2549458, 5098916, 10197832, 20395664]

約数ペア:

[(1, 20395664), (2, 10197832), (4, 5098916), (8, 2549458), (16, 1274729), (19, 1073456), (23, 886768), (38, 536728), (46, 443384), (76, 268364), (92, 221692), (152, 134182), (184, 110846), (304, 67091), (368, 55423), (437, 46672), (874, 23336), (1748, 11668), (2917, 6992), (3496, 5834)]