28404275890

素因数分解:

$2^1\times 5^1\times {\mathrm{349}}^1\times {\mathrm{8138761}}^1$

素因数の和:8139117

約数の個数: 16

約数和(自身を含む): 51274200600

約数和(自身を除く): 22869924710

約数列:

[1, 2, 5, 10, 349, 698, 1745, 3490, 8138761, 16277522, 40693805, 81387610, 2840427589, 5680855178, 14202137945, 28404275890]

約数ペア:

[(1, 28404275890), (2, 14202137945), (5, 5680855178), (10, 2840427589), (349, 81387610), (698, 40693805), (1745, 16277522), (3490, 8138761)]