19858280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{38189}}^1$

素因数の和:38213

約数の個数: 32

約数和(自身を含む): 48119400

約数和(自身を除く): 28261120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 38189, 76378, 152756, 190945, 305512, 381890, 496457, 763780, 992914, 1527560, 1985828, 2482285, 3971656, 4964570, 9929140, 19858280]

約数ペア:

[(1, 19858280), (2, 9929140), (4, 4964570), (5, 3971656), (8, 2482285), (10, 1985828), (13, 1527560), (20, 992914), (26, 763780), (40, 496457), (52, 381890), (65, 305512), (104, 190945), (130, 152756), (260, 76378), (520, 38189)]