4007120

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3853}}^1$

素因数の和:3879

約数の個数: 40

約数和(自身を含む): 10035816

約数和(自身を除く): 6028696

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 3853, 7706, 15412, 19265, 30824, 38530, 50089, 61648, 77060, 100178, 154120, 200356, 250445, 308240, 400712, 500890, 801424, 1001780, 2003560, 4007120]

約数ペア:

[(1, 4007120), (2, 2003560), (4, 1001780), (5, 801424), (8, 500890), (10, 400712), (13, 308240), (16, 250445), (20, 200356), (26, 154120), (40, 100178), (52, 77060), (65, 61648), (80, 50089), (104, 38530), (130, 30824), (208, 19265), (260, 15412), (520, 7706), (1040, 3853)]