81340406

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{1601}}^1$

素因数の和:1820

約数の個数: 32

約数和(自身を含む): 147640320

約数和(自身を除く): 66299914

約数列:

[1, 2, 7, 14, 19, 38, 133, 191, 266, 382, 1337, 1601, 2674, 3202, 3629, 7258, 11207, 22414, 25403, 30419, 50806, 60838, 212933, 305791, 425866, 611582, 2140537, 4281074, 5810029, 11620058, 40670203, 81340406]

約数ペア:

[(1, 81340406), (2, 40670203), (7, 11620058), (14, 5810029), (19, 4281074), (38, 2140537), (133, 611582), (191, 425866), (266, 305791), (382, 212933), (1337, 60838), (1601, 50806), (2674, 30419), (3202, 25403), (3629, 22414), (7258, 11207)]