399255168

素因数分解:

$2^7\times 3^1\times {\mathrm{13}}^1\times {\mathrm{79979}}^1$

素因数の和:80009

約数の個数: 64

約数和(自身を含む): 1142114400

約数和(自身を除く): 742859232

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 48, 52, 64, 78, 96, 104, 128, 156, 192, 208, 312, 384, 416, 624, 832, 1248, 1664, 2496, 4992, 79979, 159958, 239937, 319916, 479874, 639832, 959748, 1039727, 1279664, 1919496, 2079454, 2559328, 3119181, 3838992, 4158908, 5118656, 6238362, 7677984, 8317816, 10237312, 12476724, 15355968, 16635632, 24953448, 30711936, 33271264, 49906896, 66542528, 99813792, 133085056, 199627584, 399255168]

約数ペア:

[(1, 399255168), (2, 199627584), (3, 133085056), (4, 99813792), (6, 66542528), (8, 49906896), (12, 33271264), (13, 30711936), (16, 24953448), (24, 16635632), (26, 15355968), (32, 12476724), (39, 10237312), (48, 8317816), (52, 7677984), (64, 6238362), (78, 5118656), (96, 4158908), (104, 3838992), (128, 3119181), (156, 2559328), (192, 2079454), (208, 1919496), (312, 1279664), (384, 1039727), (416, 959748), (624, 639832), (832, 479874), (1248, 319916), (1664, 239937), (2496, 159958), (4992, 79979)]