20479256

素因数分解:

$2^3\times 7^2\times {\mathrm{89}}^1\times {\mathrm{587}}^1$

素因数の和:696

約数の個数: 48

約数和(自身を含む): 45246600

約数和(自身を除く): 24767344

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 89, 98, 178, 196, 356, 392, 587, 623, 712, 1174, 1246, 2348, 2492, 4109, 4361, 4696, 4984, 8218, 8722, 16436, 17444, 28763, 32872, 34888, 52243, 57526, 104486, 115052, 208972, 230104, 365701, 417944, 731402, 1462804, 2559907, 2925608, 5119814, 10239628, 20479256]

約数ペア:

[(1, 20479256), (2, 10239628), (4, 5119814), (7, 2925608), (8, 2559907), (14, 1462804), (28, 731402), (49, 417944), (56, 365701), (89, 230104), (98, 208972), (178, 115052), (196, 104486), (356, 57526), (392, 52243), (587, 34888), (623, 32872), (712, 28763), (1174, 17444), (1246, 16436), (2348, 8722), (2492, 8218), (4109, 4984), (4361, 4696)]