18081900

素因数分解:

$2^2\times 3^3\times 5^2\times {\mathrm{37}}^1\times {\mathrm{181}}^1$

素因数の和:241

約数の個数: 144

約数和(自身を含む): 60030880

約数和(自身を除く): 41948980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 27, 30, 36, 37, 45, 50, 54, 60, 74, 75, 90, 100, 108, 111, 135, 148, 150, 180, 181, 185, 222, 225, 270, 300, 333, 362, 370, 444, 450, 540, 543, 555, 666, 675, 724, 740, 900, 905, 925, 999, 1086, 1110, 1332, 1350, 1629, 1665, 1810, 1850, 1998, 2172, 2220, 2700, 2715, 2775, 3258, 3330, 3620, 3700, 3996, 4525, 4887, 4995, 5430, 5550, 6516, 6660, 6697, 8145, 8325, 9050, 9774, 9990, 10860, 11100, 13394, 13575, 16290, 16650, 18100, 19548, 19980, 20091, 24435, 24975, 26788, 27150, 32580, 33300, 33485, 40182, 40725, 48870, 49950, 54300, 60273, 66970, 80364, 81450, 97740, 99900, 100455, 120546, 122175, 133940, 162900, 167425, 180819, 200910, 241092, 244350, 301365, 334850, 361638, 401820, 488700, 502275, 602730, 669700, 723276, 904095, 1004550, 1205460, 1506825, 1808190, 2009100, 3013650, 3616380, 4520475, 6027300, 9040950, 18081900]

約数ペア:

[(1, 18081900), (2, 9040950), (3, 6027300), (4, 4520475), (5, 3616380), (6, 3013650), (9, 2009100), (10, 1808190), (12, 1506825), (15, 1205460), (18, 1004550), (20, 904095), (25, 723276), (27, 669700), (30, 602730), (36, 502275), (37, 488700), (45, 401820), (50, 361638), (54, 334850), (60, 301365), (74, 244350), (75, 241092), (90, 200910), (100, 180819), (108, 167425), (111, 162900), (135, 133940), (148, 122175), (150, 120546), (180, 100455), (181, 99900), (185, 97740), (222, 81450), (225, 80364), (270, 66970), (300, 60273), (333, 54300), (362, 49950), (370, 48870), (444, 40725), (450, 40182), (540, 33485), (543, 33300), (555, 32580), (666, 27150), (675, 26788), (724, 24975), (740, 24435), (900, 20091), (905, 19980), (925, 19548), (999, 18100), (1086, 16650), (1110, 16290), (1332, 13575), (1350, 13394), (1629, 11100), (1665, 10860), (1810, 9990), (1850, 9774), (1998, 9050), (2172, 8325), (2220, 8145), (2700, 6697), (2715, 6660), (2775, 6516), (3258, 5550), (3330, 5430), (3620, 4995), (3700, 4887), (3996, 4525)]