20008080

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{157}}^1$

素因数の和:238

約数の個数: 160

約数和(自身を含む): 70531200

約数和(自身を除く): 50523120

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, 157, 177, 180, 216, 236, 240, 270, 295, 314, 354, 360, 432, 471, 472, 531, 540, 590, 628, 708, 720, 785, 885, 942, 944, 1062, 1080, 1180, 1256, 1413, 1416, 1570, 1593, 1770, 1884, 2124, 2160, 2355, 2360, 2512, 2655, 2826, 2832, 3140, 3186, 3540, 3768, 4239, 4248, 4710, 4720, 5310, 5652, 6280, 6372, 7065, 7080, 7536, 7965, 8478, 8496, 9263, 9420, 10620, 11304, 12560, 12744, 14130, 14160, 15930, 16956, 18526, 18840, 21195, 21240, 22608, 25488, 27789, 28260, 31860, 33912, 37052, 37680, 42390, 42480, 46315, 55578, 56520, 63720, 67824, 74104, 83367, 84780, 92630, 111156, 113040, 127440, 138945, 148208, 166734, 169560, 185260, 222312, 250101, 277890, 333468, 339120, 370520, 416835, 444624, 500202, 555780, 666936, 741040, 833670, 1000404, 1111560, 1250505, 1333872, 1667340, 2000808, 2223120, 2501010, 3334680, 4001616, 5002020, 6669360, 10004040, 20008080]

約数ペア:

[(1, 20008080), (2, 10004040), (3, 6669360), (4, 5002020), (5, 4001616), (6, 3334680), (8, 2501010), (9, 2223120), (10, 2000808), (12, 1667340), (15, 1333872), (16, 1250505), (18, 1111560), (20, 1000404), (24, 833670), (27, 741040), (30, 666936), (36, 555780), (40, 500202), (45, 444624), (48, 416835), (54, 370520), (59, 339120), (60, 333468), (72, 277890), (80, 250101), (90, 222312), (108, 185260), (118, 169560), (120, 166734), (135, 148208), (144, 138945), (157, 127440), (177, 113040), (180, 111156), (216, 92630), (236, 84780), (240, 83367), (270, 74104), (295, 67824), (314, 63720), (354, 56520), (360, 55578), (432, 46315), (471, 42480), (472, 42390), (531, 37680), (540, 37052), (590, 33912), (628, 31860), (708, 28260), (720, 27789), (785, 25488), (885, 22608), (942, 21240), (944, 21195), (1062, 18840), (1080, 18526), (1180, 16956), (1256, 15930), (1413, 14160), (1416, 14130), (1570, 12744), (1593, 12560), (1770, 11304), (1884, 10620), (2124, 9420), (2160, 9263), (2355, 8496), (2360, 8478), (2512, 7965), (2655, 7536), (2826, 7080), (2832, 7065), (3140, 6372), (3186, 6280), (3540, 5652), (3768, 5310), (4239, 4720), (4248, 4710)]