21474294320

素因数分解:

$2^4\times 5^1\times {\mathrm{29789}}^1\times {\mathrm{9011}}^1$

素因数の和:38813

約数の個数: 40

約数和(自身を含む): 49934951280

約数和(自身を除く): 28460656960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 9011, 18022, 29789, 36044, 45055, 59578, 72088, 90110, 119156, 144176, 148945, 180220, 238312, 297890, 360440, 476624, 595780, 720880, 1191560, 2383120, 268428679, 536857358, 1073714716, 1342143395, 2147429432, 2684286790, 4294858864, 5368573580, 10737147160, 21474294320]

約数ペア:

[(1, 21474294320), (2, 10737147160), (4, 5368573580), (5, 4294858864), (8, 2684286790), (10, 2147429432), (16, 1342143395), (20, 1073714716), (40, 536857358), (80, 268428679), (9011, 2383120), (18022, 1191560), (29789, 720880), (36044, 595780), (45055, 476624), (59578, 360440), (72088, 297890), (90110, 238312), (119156, 180220), (144176, 148945)]