81456480

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{8081}}^1$

素因数の和:8109

約数の個数: 144

約数和(自身を含む): 317719584

約数和(自身を除く): 236263104

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 160, 168, 180, 210, 224, 240, 252, 280, 288, 315, 336, 360, 420, 480, 504, 560, 630, 672, 720, 840, 1008, 1120, 1260, 1440, 1680, 2016, 2520, 3360, 5040, 8081, 10080, 16162, 24243, 32324, 40405, 48486, 56567, 64648, 72729, 80810, 96972, 113134, 121215, 129296, 145458, 161620, 169701, 193944, 226268, 242430, 258592, 282835, 290916, 323240, 339402, 363645, 387888, 452536, 484860, 509103, 565670, 581832, 646480, 678804, 727290, 775776, 848505, 905072, 969720, 1018206, 1131340, 1163664, 1292960, 1357608, 1454580, 1697010, 1810144, 1939440, 2036412, 2262680, 2327328, 2545515, 2715216, 2909160, 3394020, 3878880, 4072824, 4525360, 5091030, 5430432, 5818320, 6788040, 8145648, 9050720, 10182060, 11636640, 13576080, 16291296, 20364120, 27152160, 40728240, 81456480]

約数ペア:

[(1, 81456480), (2, 40728240), (3, 27152160), (4, 20364120), (5, 16291296), (6, 13576080), (7, 11636640), (8, 10182060), (9, 9050720), (10, 8145648), (12, 6788040), (14, 5818320), (15, 5430432), (16, 5091030), (18, 4525360), (20, 4072824), (21, 3878880), (24, 3394020), (28, 2909160), (30, 2715216), (32, 2545515), (35, 2327328), (36, 2262680), (40, 2036412), (42, 1939440), (45, 1810144), (48, 1697010), (56, 1454580), (60, 1357608), (63, 1292960), (70, 1163664), (72, 1131340), (80, 1018206), (84, 969720), (90, 905072), (96, 848505), (105, 775776), (112, 727290), (120, 678804), (126, 646480), (140, 581832), (144, 565670), (160, 509103), (168, 484860), (180, 452536), (210, 387888), (224, 363645), (240, 339402), (252, 323240), (280, 290916), (288, 282835), (315, 258592), (336, 242430), (360, 226268), (420, 193944), (480, 169701), (504, 161620), (560, 145458), (630, 129296), (672, 121215), (720, 113134), (840, 96972), (1008, 80810), (1120, 72729), (1260, 64648), (1440, 56567), (1680, 48486), (2016, 40405), (2520, 32324), (3360, 24243), (5040, 16162), (8081, 10080)]