15980128

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{181}}^1$

素因数の和:311

約数の個数: 48

約数和(自身を含む): 33022080

約数和(自身を除く): 17041952

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 89, 124, 178, 181, 248, 356, 362, 496, 712, 724, 992, 1424, 1448, 2759, 2848, 2896, 5518, 5611, 5792, 11036, 11222, 16109, 22072, 22444, 32218, 44144, 44888, 64436, 88288, 89776, 128872, 179552, 257744, 499379, 515488, 998758, 1997516, 3995032, 7990064, 15980128]

約数ペア:

[(1, 15980128), (2, 7990064), (4, 3995032), (8, 1997516), (16, 998758), (31, 515488), (32, 499379), (62, 257744), (89, 179552), (124, 128872), (178, 89776), (181, 88288), (248, 64436), (356, 44888), (362, 44144), (496, 32218), (712, 22444), (724, 22072), (992, 16109), (1424, 11222), (1448, 11036), (2759, 5792), (2848, 5611), (2896, 5518)]