80450201840

素因数分解:

$2^4\times 5^1\times {\mathrm{409}}^1\times {\mathrm{2458747}}^1$

素因数の和:2459169

約数の個数: 40

約数和(自身を含む): 187504122480

約数和(自身を除く): 107053920640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 409, 818, 1636, 2045, 3272, 4090, 6544, 8180, 16360, 32720, 2458747, 4917494, 9834988, 12293735, 19669976, 24587470, 39339952, 49174940, 98349880, 196699760, 1005627523, 2011255046, 4022510092, 5028137615, 8045020184, 10056275230, 16090040368, 20112550460, 40225100920, 80450201840]

約数ペア:

[(1, 80450201840), (2, 40225100920), (4, 20112550460), (5, 16090040368), (8, 10056275230), (10, 8045020184), (16, 5028137615), (20, 4022510092), (40, 2011255046), (80, 1005627523), (409, 196699760), (818, 98349880), (1636, 49174940), (2045, 39339952), (3272, 24587470), (4090, 19669976), (6544, 12293735), (8180, 9834988), (16360, 4917494), (32720, 2458747)]