19989710

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{8093}}^1$

素因数の和:8132

約数の個数: 32

約数和(自身を含む): 40793760

約数和(自身を除く): 20804050

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 190, 247, 494, 1235, 2470, 8093, 16186, 40465, 80930, 105209, 153767, 210418, 307534, 526045, 768835, 1052090, 1537670, 1998971, 3997942, 9994855, 19989710]

約数ペア:

[(1, 19989710), (2, 9994855), (5, 3997942), (10, 1998971), (13, 1537670), (19, 1052090), (26, 768835), (38, 526045), (65, 307534), (95, 210418), (130, 153767), (190, 105209), (247, 80930), (494, 40465), (1235, 16186), (2470, 8093)]