388000256

素因数分解:

$2^9\times 7^1\times {\mathrm{73}}^1\times {\mathrm{1483}}^1$

素因数の和:1581

約数の個数: 80

約数和(自身を含む): 898734144

約数和(自身を除く): 510733888

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, 1483, 1792, 2044, 2336, 2966, 3584, 4088, 4672, 5932, 8176, 9344, 10381, 11864, 16352, 18688, 20762, 23728, 32704, 37376, 41524, 47456, 65408, 83048, 94912, 108259, 130816, 166096, 189824, 216518, 261632, 332192, 379648, 433036, 664384, 757813, 759296, 866072, 1328768, 1515626, 1732144, 2657536, 3031252, 3464288, 5315072, 6062504, 6928576, 12125008, 13857152, 24250016, 27714304, 48500032, 55428608, 97000064, 194000128, 388000256]

約数ペア:

[(1, 388000256), (2, 194000128), (4, 97000064), (7, 55428608), (8, 48500032), (14, 27714304), (16, 24250016), (28, 13857152), (32, 12125008), (56, 6928576), (64, 6062504), (73, 5315072), (112, 3464288), (128, 3031252), (146, 2657536), (224, 1732144), (256, 1515626), (292, 1328768), (448, 866072), (511, 759296), (512, 757813), (584, 664384), (896, 433036), (1022, 379648), (1168, 332192), (1483, 261632), (1792, 216518), (2044, 189824), (2336, 166096), (2966, 130816), (3584, 108259), (4088, 94912), (4672, 83048), (5932, 65408), (8176, 47456), (9344, 41524), (10381, 37376), (11864, 32704), (16352, 23728), (18688, 20762)]