20319488

素因数分解:

$2^8\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1$

素因数の和:92

約数の個数: 144

約数和(自身を含む): 52980480

約数和(自身を除く): 32660992

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 23, 28, 29, 32, 34, 46, 56, 58, 64, 68, 92, 112, 116, 119, 128, 136, 161, 184, 203, 224, 232, 238, 256, 272, 322, 368, 391, 406, 448, 464, 476, 493, 544, 644, 667, 736, 782, 812, 896, 928, 952, 986, 1088, 1288, 1334, 1472, 1564, 1624, 1792, 1856, 1904, 1972, 2176, 2576, 2668, 2737, 2944, 3128, 3248, 3451, 3712, 3808, 3944, 4352, 4669, 5152, 5336, 5474, 5888, 6256, 6496, 6902, 7424, 7616, 7888, 9338, 10304, 10672, 10948, 11339, 12512, 12992, 13804, 15232, 15776, 18676, 20608, 21344, 21896, 22678, 25024, 25984, 27608, 30464, 31552, 37352, 41216, 42688, 43792, 45356, 50048, 51968, 55216, 63104, 74704, 79373, 85376, 87584, 90712, 100096, 110432, 126208, 149408, 158746, 170752, 175168, 181424, 220864, 298816, 317492, 350336, 362848, 441728, 597632, 634984, 700672, 725696, 883456, 1195264, 1269968, 1451392, 2539936, 2902784, 5079872, 10159744, 20319488]

約数ペア:

[(1, 20319488), (2, 10159744), (4, 5079872), (7, 2902784), (8, 2539936), (14, 1451392), (16, 1269968), (17, 1195264), (23, 883456), (28, 725696), (29, 700672), (32, 634984), (34, 597632), (46, 441728), (56, 362848), (58, 350336), (64, 317492), (68, 298816), (92, 220864), (112, 181424), (116, 175168), (119, 170752), (128, 158746), (136, 149408), (161, 126208), (184, 110432), (203, 100096), (224, 90712), (232, 87584), (238, 85376), (256, 79373), (272, 74704), (322, 63104), (368, 55216), (391, 51968), (406, 50048), (448, 45356), (464, 43792), (476, 42688), (493, 41216), (544, 37352), (644, 31552), (667, 30464), (736, 27608), (782, 25984), (812, 25024), (896, 22678), (928, 21896), (952, 21344), (986, 20608), (1088, 18676), (1288, 15776), (1334, 15232), (1472, 13804), (1564, 12992), (1624, 12512), (1792, 11339), (1856, 10948), (1904, 10672), (1972, 10304), (2176, 9338), (2576, 7888), (2668, 7616), (2737, 7424), (2944, 6902), (3128, 6496), (3248, 6256), (3451, 5888), (3712, 5474), (3808, 5336), (3944, 5152), (4352, 4669)]