815860

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{113}}^1$

素因数の和:160

約数の個数: 36

約数和(自身を含む): 1824228

約数和(自身を除く): 1008368

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 113, 190, 226, 361, 380, 452, 565, 722, 1130, 1444, 1805, 2147, 2260, 3610, 4294, 7220, 8588, 10735, 21470, 40793, 42940, 81586, 163172, 203965, 407930, 815860]

約数ペア:

[(1, 815860), (2, 407930), (4, 203965), (5, 163172), (10, 81586), (19, 42940), (20, 40793), (38, 21470), (76, 10735), (95, 8588), (113, 7220), (190, 4294), (226, 3610), (361, 2260), (380, 2147), (452, 1805), (565, 1444), (722, 1130)]