81792990

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{241}}^1\times {\mathrm{419}}^1$

素因数の和:679

約数の個数: 80

約数和(自身を含む): 221371920

約数和(自身を除く): 139578930

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 241, 270, 405, 419, 482, 723, 810, 838, 1205, 1257, 1446, 2095, 2169, 2410, 2514, 3615, 3771, 4190, 4338, 6285, 6507, 7230, 7542, 10845, 11313, 12570, 13014, 18855, 19521, 21690, 22626, 32535, 33939, 37710, 39042, 56565, 65070, 67878, 97605, 100979, 113130, 169695, 195210, 201958, 302937, 339390, 504895, 605874, 908811, 1009790, 1514685, 1817622, 2726433, 3029370, 4544055, 5452866, 8179299, 9088110, 13632165, 16358598, 27264330, 40896495, 81792990]

約数ペア:

[(1, 81792990), (2, 40896495), (3, 27264330), (5, 16358598), (6, 13632165), (9, 9088110), (10, 8179299), (15, 5452866), (18, 4544055), (27, 3029370), (30, 2726433), (45, 1817622), (54, 1514685), (81, 1009790), (90, 908811), (135, 605874), (162, 504895), (241, 339390), (270, 302937), (405, 201958), (419, 195210), (482, 169695), (723, 113130), (810, 100979), (838, 97605), (1205, 67878), (1257, 65070), (1446, 56565), (2095, 39042), (2169, 37710), (2410, 33939), (2514, 32535), (3615, 22626), (3771, 21690), (4190, 19521), (4338, 18855), (6285, 13014), (6507, 12570), (7230, 11313), (7542, 10845)]