20179800

素因数分解:

$2^3\times 3^3\times 5^2\times {\mathrm{37}}^1\times {\mathrm{101}}^1$

素因数の和:163

約数の個数: 192

約数和(自身を含む): 72093600

約数和(自身を除く): 51913800

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 25, 27, 30, 36, 37, 40, 45, 50, 54, 60, 72, 74, 75, 90, 100, 101, 108, 111, 120, 135, 148, 150, 180, 185, 200, 202, 216, 222, 225, 270, 296, 300, 303, 333, 360, 370, 404, 444, 450, 505, 540, 555, 600, 606, 666, 675, 740, 808, 888, 900, 909, 925, 999, 1010, 1080, 1110, 1212, 1332, 1350, 1480, 1515, 1665, 1800, 1818, 1850, 1998, 2020, 2220, 2424, 2525, 2664, 2700, 2727, 2775, 3030, 3330, 3636, 3700, 3737, 3996, 4040, 4440, 4545, 4995, 5050, 5400, 5454, 5550, 6060, 6660, 7272, 7400, 7474, 7575, 7992, 8325, 9090, 9990, 10100, 10908, 11100, 11211, 12120, 13320, 13635, 14948, 15150, 16650, 18180, 18685, 19980, 20200, 21816, 22200, 22422, 22725, 24975, 27270, 29896, 30300, 33300, 33633, 36360, 37370, 39960, 44844, 45450, 49950, 54540, 56055, 60600, 66600, 67266, 68175, 74740, 89688, 90900, 93425, 99900, 100899, 109080, 112110, 134532, 136350, 149480, 168165, 181800, 186850, 199800, 201798, 224220, 269064, 272700, 280275, 336330, 373700, 403596, 448440, 504495, 545400, 560550, 672660, 747400, 807192, 840825, 1008990, 1121100, 1345320, 1681650, 2017980, 2242200, 2522475, 3363300, 4035960, 5044950, 6726600, 10089900, 20179800]

約数ペア:

[(1, 20179800), (2, 10089900), (3, 6726600), (4, 5044950), (5, 4035960), (6, 3363300), (8, 2522475), (9, 2242200), (10, 2017980), (12, 1681650), (15, 1345320), (18, 1121100), (20, 1008990), (24, 840825), (25, 807192), (27, 747400), (30, 672660), (36, 560550), (37, 545400), (40, 504495), (45, 448440), (50, 403596), (54, 373700), (60, 336330), (72, 280275), (74, 272700), (75, 269064), (90, 224220), (100, 201798), (101, 199800), (108, 186850), (111, 181800), (120, 168165), (135, 149480), (148, 136350), (150, 134532), (180, 112110), (185, 109080), (200, 100899), (202, 99900), (216, 93425), (222, 90900), (225, 89688), (270, 74740), (296, 68175), (300, 67266), (303, 66600), (333, 60600), (360, 56055), (370, 54540), (404, 49950), (444, 45450), (450, 44844), (505, 39960), (540, 37370), (555, 36360), (600, 33633), (606, 33300), (666, 30300), (675, 29896), (740, 27270), (808, 24975), (888, 22725), (900, 22422), (909, 22200), (925, 21816), (999, 20200), (1010, 19980), (1080, 18685), (1110, 18180), (1212, 16650), (1332, 15150), (1350, 14948), (1480, 13635), (1515, 13320), (1665, 12120), (1800, 11211), (1818, 11100), (1850, 10908), (1998, 10100), (2020, 9990), (2220, 9090), (2424, 8325), (2525, 7992), (2664, 7575), (2700, 7474), (2727, 7400), (2775, 7272), (3030, 6660), (3330, 6060), (3636, 5550), (3700, 5454), (3737, 5400), (3996, 5050), (4040, 4995), (4440, 4545)]