19910528

素因数分解:

$2^7\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{179}}^1$

素因数の和:283

約数の個数: 64

約数和(自身を含む): 44064000

約数和(自身を除く): 24153472

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 64, 79, 88, 128, 158, 176, 179, 316, 352, 358, 632, 704, 716, 869, 1264, 1408, 1432, 1738, 1969, 2528, 2864, 3476, 3938, 5056, 5728, 6952, 7876, 10112, 11456, 13904, 14141, 15752, 22912, 27808, 28282, 31504, 55616, 56564, 63008, 111232, 113128, 126016, 155551, 226256, 252032, 311102, 452512, 622204, 905024, 1244408, 1810048, 2488816, 4977632, 9955264, 19910528]

約数ペア:

[(1, 19910528), (2, 9955264), (4, 4977632), (8, 2488816), (11, 1810048), (16, 1244408), (22, 905024), (32, 622204), (44, 452512), (64, 311102), (79, 252032), (88, 226256), (128, 155551), (158, 126016), (176, 113128), (179, 111232), (316, 63008), (352, 56564), (358, 55616), (632, 31504), (704, 28282), (716, 27808), (869, 22912), (1264, 15752), (1408, 14141), (1432, 13904), (1738, 11456), (1969, 10112), (2528, 7876), (2864, 6952), (3476, 5728), (3938, 5056)]