256021904

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{797}}^1\times {\mathrm{1181}}^1$

素因数の和:2003

約数の個数: 40

約数和(自身を含む): 526325688

約数和(自身を除く): 270303784

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 797, 1181, 1594, 2362, 3188, 4724, 6376, 9448, 12752, 13549, 18896, 20077, 27098, 40154, 54196, 80308, 108392, 160616, 216784, 321232, 941257, 1882514, 3765028, 7530056, 15060112, 16001369, 32002738, 64005476, 128010952, 256021904]

約数ペア:

[(1, 256021904), (2, 128010952), (4, 64005476), (8, 32002738), (16, 16001369), (17, 15060112), (34, 7530056), (68, 3765028), (136, 1882514), (272, 941257), (797, 321232), (1181, 216784), (1594, 160616), (2362, 108392), (3188, 80308), (4724, 54196), (6376, 40154), (9448, 27098), (12752, 20077), (13549, 18896)]