400755712

素因数分解:

$2^{10}\times 7^4\times {\mathrm{163}}^1$

素因数の和:211

約数の個数: 110

約数和(自身を含む): 940318108

約数和(自身を除く): 539562396

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 128, 163, 196, 224, 256, 326, 343, 392, 448, 512, 652, 686, 784, 896, 1024, 1141, 1304, 1372, 1568, 1792, 2282, 2401, 2608, 2744, 3136, 3584, 4564, 4802, 5216, 5488, 6272, 7168, 7987, 9128, 9604, 10432, 10976, 12544, 15974, 18256, 19208, 20864, 21952, 25088, 31948, 36512, 38416, 41728, 43904, 50176, 55909, 63896, 73024, 76832, 83456, 87808, 111818, 127792, 146048, 153664, 166912, 175616, 223636, 255584, 292096, 307328, 351232, 391363, 447272, 511168, 584192, 614656, 782726, 894544, 1022336, 1168384, 1229312, 1565452, 1789088, 2044672, 2458624, 3130904, 3578176, 4089344, 6261808, 7156352, 8178688, 12523616, 14312704, 25047232, 28625408, 50094464, 57250816, 100188928, 200377856, 400755712]

約数ペア:

[(1, 400755712), (2, 200377856), (4, 100188928), (7, 57250816), (8, 50094464), (14, 28625408), (16, 25047232), (28, 14312704), (32, 12523616), (49, 8178688), (56, 7156352), (64, 6261808), (98, 4089344), (112, 3578176), (128, 3130904), (163, 2458624), (196, 2044672), (224, 1789088), (256, 1565452), (326, 1229312), (343, 1168384), (392, 1022336), (448, 894544), (512, 782726), (652, 614656), (686, 584192), (784, 511168), (896, 447272), (1024, 391363), (1141, 351232), (1304, 307328), (1372, 292096), (1568, 255584), (1792, 223636), (2282, 175616), (2401, 166912), (2608, 153664), (2744, 146048), (3136, 127792), (3584, 111818), (4564, 87808), (4802, 83456), (5216, 76832), (5488, 73024), (6272, 63896), (7168, 55909), (7987, 50176), (9128, 43904), (9604, 41728), (10432, 38416), (10976, 36512), (12544, 31948), (15974, 25088), (18256, 21952), (19208, 20864)]