8258540

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{211}}^1$

素因数の和:342

約数の個数: 48

約数和(自身を含む): 18520320

約数和(自身を除く): 10261780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 103, 190, 206, 211, 380, 412, 422, 515, 844, 1030, 1055, 1957, 2060, 2110, 3914, 4009, 4220, 7828, 8018, 9785, 16036, 19570, 20045, 21733, 39140, 40090, 43466, 80180, 86932, 108665, 217330, 412927, 434660, 825854, 1651708, 2064635, 4129270, 8258540]

約数ペア:

[(1, 8258540), (2, 4129270), (4, 2064635), (5, 1651708), (10, 825854), (19, 434660), (20, 412927), (38, 217330), (76, 108665), (95, 86932), (103, 80180), (190, 43466), (206, 40090), (211, 39140), (380, 21733), (412, 20045), (422, 19570), (515, 16036), (844, 9785), (1030, 8018), (1055, 7828), (1957, 4220), (2060, 4009), (2110, 3914)]