641736254560

素因数分解:

$2^5\times 5^1\times {\mathrm{4423}}^1\times {\mathrm{906817}}^1$

素因数の和:911255

約数の個数: 48

約数和(自身を含む): 1516446350496

約数和(自身を除く): 874710095936

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 4423, 8846, 17692, 22115, 35384, 44230, 70768, 88460, 141536, 176920, 353840, 707680, 906817, 1813634, 3627268, 4534085, 7254536, 9068170, 14509072, 18136340, 29018144, 36272680, 72545360, 145090720, 4010851591, 8021703182, 16043406364, 20054257955, 32086812728, 40108515910, 64173625456, 80217031820, 128347250912, 160434063640, 320868127280, 641736254560]

約数ペア:

[(1, 641736254560), (2, 320868127280), (4, 160434063640), (5, 128347250912), (8, 80217031820), (10, 64173625456), (16, 40108515910), (20, 32086812728), (32, 20054257955), (40, 16043406364), (80, 8021703182), (160, 4010851591), (4423, 145090720), (8846, 72545360), (17692, 36272680), (22115, 29018144), (35384, 18136340), (44230, 14509072), (70768, 9068170), (88460, 7254536), (141536, 4534085), (176920, 3627268), (353840, 1813634), (707680, 906817)]