16581490

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{443}}^1$

素因数の和:666

約数の個数: 32

約数和(自身を含む): 31648320

約数和(自身を除く): 15066830

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 197, 394, 443, 886, 985, 1970, 2215, 3743, 4430, 7486, 8417, 16834, 18715, 37430, 42085, 84170, 87271, 174542, 436355, 872710, 1658149, 3316298, 8290745, 16581490]

約数ペア:

[(1, 16581490), (2, 8290745), (5, 3316298), (10, 1658149), (19, 872710), (38, 436355), (95, 174542), (190, 87271), (197, 84170), (394, 42085), (443, 37430), (886, 18715), (985, 16834), (1970, 8417), (2215, 7486), (3743, 4430)]