420965888

素因数分解:

$2^9\times 7^1\times {\mathrm{73}}^1\times {\mathrm{1609}}^1$

素因数の和:1707

約数の個数: 80

約数和(自身を含む): 975041760

約数和(自身を除く): 554075872

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 73, 112, 128, 146, 224, 256, 292, 448, 511, 512, 584, 896, 1022, 1168, 1609, 1792, 2044, 2336, 3218, 3584, 4088, 4672, 6436, 8176, 9344, 11263, 12872, 16352, 18688, 22526, 25744, 32704, 37376, 45052, 51488, 65408, 90104, 102976, 117457, 130816, 180208, 205952, 234914, 261632, 360416, 411904, 469828, 720832, 822199, 823808, 939656, 1441664, 1644398, 1879312, 2883328, 3288796, 3758624, 5766656, 6577592, 7517248, 13155184, 15034496, 26310368, 30068992, 52620736, 60137984, 105241472, 210482944, 420965888]

約数ペア:

[(1, 420965888), (2, 210482944), (4, 105241472), (7, 60137984), (8, 52620736), (14, 30068992), (16, 26310368), (28, 15034496), (32, 13155184), (56, 7517248), (64, 6577592), (73, 5766656), (112, 3758624), (128, 3288796), (146, 2883328), (224, 1879312), (256, 1644398), (292, 1441664), (448, 939656), (511, 823808), (512, 822199), (584, 720832), (896, 469828), (1022, 411904), (1168, 360416), (1609, 261632), (1792, 234914), (2044, 205952), (2336, 180208), (3218, 130816), (3584, 117457), (4088, 102976), (4672, 90104), (6436, 65408), (8176, 51488), (9344, 45052), (11263, 37376), (12872, 32704), (16352, 25744), (18688, 22526)]