1639822090

素因数分解:

$2^1\times 5^1\times {\mathrm{197}}^1\times {\mathrm{443}}^1\times {\mathrm{1879}}^1$

素因数の和:2526

約数の個数: 32

約数和(自身を含む): 2974942080

約数和(自身を除く): 1335119990

約数列:

[1, 2, 5, 10, 197, 394, 443, 886, 985, 1879, 1970, 2215, 3758, 4430, 9395, 18790, 87271, 174542, 370163, 436355, 740326, 832397, 872710, 1664794, 1850815, 3701630, 4161985, 8323970, 163982209, 327964418, 819911045, 1639822090]

約数ペア:

[(1, 1639822090), (2, 819911045), (5, 327964418), (10, 163982209), (197, 8323970), (394, 4161985), (443, 3701630), (886, 1850815), (985, 1664794), (1879, 872710), (1970, 832397), (2215, 740326), (3758, 436355), (4430, 370163), (9395, 174542), (18790, 87271)]