19773664

素因数分解:

$2^5\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{131}}^1$

素因数の和:283

約数の個数: 48

約数和(自身を含む): 40415760

約数和(自身を除く): 20642096

約数列:

[1, 2, 4, 8, 16, 32, 53, 89, 106, 131, 178, 212, 262, 356, 424, 524, 712, 848, 1048, 1424, 1696, 2096, 2848, 4192, 4717, 6943, 9434, 11659, 13886, 18868, 23318, 27772, 37736, 46636, 55544, 75472, 93272, 111088, 150944, 186544, 222176, 373088, 617927, 1235854, 2471708, 4943416, 9886832, 19773664]

約数ペア:

[(1, 19773664), (2, 9886832), (4, 4943416), (8, 2471708), (16, 1235854), (32, 617927), (53, 373088), (89, 222176), (106, 186544), (131, 150944), (178, 111088), (212, 93272), (262, 75472), (356, 55544), (424, 46636), (524, 37736), (712, 27772), (848, 23318), (1048, 18868), (1424, 13886), (1696, 11659), (2096, 9434), (2848, 6943), (4192, 4717)]