19387648

素因数分解:

$2^8\times 7^1\times {\mathrm{31}}^1\times {\mathrm{349}}^1$

素因数の和:403

約数の個数: 72

約数和(自身を含む): 45785600

約数和(自身を除く): 26397952

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 64, 112, 124, 128, 217, 224, 248, 256, 349, 434, 448, 496, 698, 868, 896, 992, 1396, 1736, 1792, 1984, 2443, 2792, 3472, 3968, 4886, 5584, 6944, 7936, 9772, 10819, 11168, 13888, 19544, 21638, 22336, 27776, 39088, 43276, 44672, 55552, 75733, 78176, 86552, 89344, 151466, 156352, 173104, 302932, 312704, 346208, 605864, 625408, 692416, 1211728, 1384832, 2423456, 2769664, 4846912, 9693824, 19387648]

約数ペア:

[(1, 19387648), (2, 9693824), (4, 4846912), (7, 2769664), (8, 2423456), (14, 1384832), (16, 1211728), (28, 692416), (31, 625408), (32, 605864), (56, 346208), (62, 312704), (64, 302932), (112, 173104), (124, 156352), (128, 151466), (217, 89344), (224, 86552), (248, 78176), (256, 75733), (349, 55552), (434, 44672), (448, 43276), (496, 39088), (698, 27776), (868, 22336), (896, 21638), (992, 19544), (1396, 13888), (1736, 11168), (1792, 10819), (1984, 9772), (2443, 7936), (2792, 6944), (3472, 5584), (3968, 4886)]