3218980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{197}}^1$

素因数の和:268

約数の個数: 48

約数和(自身を含む): 7318080

約数和(自身を除く): 4099100

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 43, 76, 86, 95, 172, 190, 197, 215, 380, 394, 430, 788, 817, 860, 985, 1634, 1970, 3268, 3743, 3940, 4085, 7486, 8170, 8471, 14972, 16340, 16942, 18715, 33884, 37430, 42355, 74860, 84710, 160949, 169420, 321898, 643796, 804745, 1609490, 3218980]

約数ペア:

[(1, 3218980), (2, 1609490), (4, 804745), (5, 643796), (10, 321898), (19, 169420), (20, 160949), (38, 84710), (43, 74860), (76, 42355), (86, 37430), (95, 33884), (172, 18715), (190, 16942), (197, 16340), (215, 14972), (380, 8471), (394, 8170), (430, 7486), (788, 4085), (817, 3940), (860, 3743), (985, 3268), (1634, 1970)]