81780370

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{3617}}^1$

素因数の和:3667

約数の個数: 64

約数和(自身を含む): 187557120

約数和(自身を除く): 105776750

約数列:

[1, 2, 5, 7, 10, 14, 17, 19, 34, 35, 38, 70, 85, 95, 119, 133, 170, 190, 238, 266, 323, 595, 646, 665, 1190, 1330, 1615, 2261, 3230, 3617, 4522, 7234, 11305, 18085, 22610, 25319, 36170, 50638, 61489, 68723, 122978, 126595, 137446, 253190, 307445, 343615, 430423, 481061, 614890, 687230, 860846, 962122, 1168291, 2152115, 2336582, 2405305, 4304230, 4810610, 5841455, 8178037, 11682910, 16356074, 40890185, 81780370]

約数ペア:

[(1, 81780370), (2, 40890185), (5, 16356074), (7, 11682910), (10, 8178037), (14, 5841455), (17, 4810610), (19, 4304230), (34, 2405305), (35, 2336582), (38, 2152115), (70, 1168291), (85, 962122), (95, 860846), (119, 687230), (133, 614890), (170, 481061), (190, 430423), (238, 343615), (266, 307445), (323, 253190), (595, 137446), (646, 126595), (665, 122978), (1190, 68723), (1330, 61489), (1615, 50638), (2261, 36170), (3230, 25319), (3617, 22610), (4522, 18085), (7234, 11305)]