28958780

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1\times {\mathrm{223}}^1$

素因数の和:426

約数の個数: 48

約数和(自身を含む): 62920704

約数和(自身を除く): 33961924

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 151, 172, 215, 223, 302, 430, 446, 604, 755, 860, 892, 1115, 1510, 2230, 3020, 4460, 6493, 9589, 12986, 19178, 25972, 32465, 33673, 38356, 47945, 64930, 67346, 95890, 129860, 134692, 168365, 191780, 336730, 673460, 1447939, 2895878, 5791756, 7239695, 14479390, 28958780]

約数ペア:

[(1, 28958780), (2, 14479390), (4, 7239695), (5, 5791756), (10, 2895878), (20, 1447939), (43, 673460), (86, 336730), (151, 191780), (172, 168365), (215, 134692), (223, 129860), (302, 95890), (430, 67346), (446, 64930), (604, 47945), (755, 38356), (860, 33673), (892, 32465), (1115, 25972), (1510, 19178), (2230, 12986), (3020, 9589), (4460, 6493)]