82405760

素因数分解:

$2^7\times 5^1\times {\mathrm{331}}^1\times {\mathrm{389}}^1$

素因数の和:739

約数の個数: 64

約数和(自身を含む): 198104400

約数和(自身を除く): 115698640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 331, 389, 640, 662, 778, 1324, 1556, 1655, 1945, 2648, 3112, 3310, 3890, 5296, 6224, 6620, 7780, 10592, 12448, 13240, 15560, 21184, 24896, 26480, 31120, 42368, 49792, 52960, 62240, 105920, 124480, 128759, 211840, 248960, 257518, 515036, 643795, 1030072, 1287590, 2060144, 2575180, 4120288, 5150360, 8240576, 10300720, 16481152, 20601440, 41202880, 82405760]

約数ペア:

[(1, 82405760), (2, 41202880), (4, 20601440), (5, 16481152), (8, 10300720), (10, 8240576), (16, 5150360), (20, 4120288), (32, 2575180), (40, 2060144), (64, 1287590), (80, 1030072), (128, 643795), (160, 515036), (320, 257518), (331, 248960), (389, 211840), (640, 128759), (662, 124480), (778, 105920), (1324, 62240), (1556, 52960), (1655, 49792), (1945, 42368), (2648, 31120), (3112, 26480), (3310, 24896), (3890, 21184), (5296, 15560), (6224, 13240), (6620, 12448), (7780, 10592)]