127720660

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{1163}}^1$

素因数の和:1225

約数の個数: 72

約数和(自身を含む): 300172320

約数和(自身を除く): 172451660

約数列:

[1, 2, 4, 5, 10, 17, 19, 20, 34, 38, 68, 76, 85, 95, 170, 190, 289, 323, 340, 380, 578, 646, 1156, 1163, 1292, 1445, 1615, 2326, 2890, 3230, 4652, 5491, 5780, 5815, 6460, 10982, 11630, 19771, 21964, 22097, 23260, 27455, 39542, 44194, 54910, 79084, 88388, 98855, 109820, 110485, 197710, 220970, 336107, 375649, 395420, 441940, 672214, 751298, 1344428, 1502596, 1680535, 1878245, 3361070, 3756490, 6386033, 6722140, 7512980, 12772066, 25544132, 31930165, 63860330, 127720660]

約数ペア:

[(1, 127720660), (2, 63860330), (4, 31930165), (5, 25544132), (10, 12772066), (17, 7512980), (19, 6722140), (20, 6386033), (34, 3756490), (38, 3361070), (68, 1878245), (76, 1680535), (85, 1502596), (95, 1344428), (170, 751298), (190, 672214), (289, 441940), (323, 395420), (340, 375649), (380, 336107), (578, 220970), (646, 197710), (1156, 110485), (1163, 109820), (1292, 98855), (1445, 88388), (1615, 79084), (2326, 54910), (2890, 44194), (3230, 39542), (4652, 27455), (5491, 23260), (5780, 22097), (5815, 21964), (6460, 19771), (10982, 11630)]