21282480

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{167}}^1$

素因数の和:248

約数の個数: 160

約数和(自身を含む): 74995200

約数和(自身を除く): 53712720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 59, 60, 72, 80, 90, 108, 118, 120, 135, 144, 167, 177, 180, 216, 236, 240, 270, 295, 334, 354, 360, 432, 472, 501, 531, 540, 590, 668, 708, 720, 835, 885, 944, 1002, 1062, 1080, 1180, 1336, 1416, 1503, 1593, 1670, 1770, 2004, 2124, 2160, 2360, 2505, 2655, 2672, 2832, 3006, 3186, 3340, 3540, 4008, 4248, 4509, 4720, 5010, 5310, 6012, 6372, 6680, 7080, 7515, 7965, 8016, 8496, 9018, 9853, 10020, 10620, 12024, 12744, 13360, 14160, 15030, 15930, 18036, 19706, 20040, 21240, 22545, 24048, 25488, 29559, 30060, 31860, 36072, 39412, 40080, 42480, 45090, 49265, 59118, 60120, 63720, 72144, 78824, 88677, 90180, 98530, 118236, 120240, 127440, 147795, 157648, 177354, 180360, 197060, 236472, 266031, 295590, 354708, 360720, 394120, 443385, 472944, 532062, 591180, 709416, 788240, 886770, 1064124, 1182360, 1330155, 1418832, 1773540, 2128248, 2364720, 2660310, 3547080, 4256496, 5320620, 7094160, 10641240, 21282480]

約数ペア:

[(1, 21282480), (2, 10641240), (3, 7094160), (4, 5320620), (5, 4256496), (6, 3547080), (8, 2660310), (9, 2364720), (10, 2128248), (12, 1773540), (15, 1418832), (16, 1330155), (18, 1182360), (20, 1064124), (24, 886770), (27, 788240), (30, 709416), (36, 591180), (40, 532062), (45, 472944), (48, 443385), (54, 394120), (59, 360720), (60, 354708), (72, 295590), (80, 266031), (90, 236472), (108, 197060), (118, 180360), (120, 177354), (135, 157648), (144, 147795), (167, 127440), (177, 120240), (180, 118236), (216, 98530), (236, 90180), (240, 88677), (270, 78824), (295, 72144), (334, 63720), (354, 60120), (360, 59118), (432, 49265), (472, 45090), (501, 42480), (531, 40080), (540, 39412), (590, 36072), (668, 31860), (708, 30060), (720, 29559), (835, 25488), (885, 24048), (944, 22545), (1002, 21240), (1062, 20040), (1080, 19706), (1180, 18036), (1336, 15930), (1416, 15030), (1503, 14160), (1593, 13360), (1670, 12744), (1770, 12024), (2004, 10620), (2124, 10020), (2160, 9853), (2360, 9018), (2505, 8496), (2655, 8016), (2672, 7965), (2832, 7515), (3006, 7080), (3186, 6680), (3340, 6372), (3540, 6012), (4008, 5310), (4248, 5010), (4509, 4720)]