18007920

素因数分解:

$2^4\times 3^4\times 5^1\times 7^1\times {\mathrm{397}}^1$

素因数の和:429

約数の個数: 200

約数和(自身を含む): 71659104

約数和(自身を除く): 53651184

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 81, 84, 90, 105, 108, 112, 120, 126, 135, 140, 144, 162, 168, 180, 189, 210, 216, 240, 252, 270, 280, 315, 324, 336, 360, 378, 397, 405, 420, 432, 504, 540, 560, 567, 630, 648, 720, 756, 794, 810, 840, 945, 1008, 1080, 1134, 1191, 1260, 1296, 1512, 1588, 1620, 1680, 1890, 1985, 2160, 2268, 2382, 2520, 2779, 2835, 3024, 3176, 3240, 3573, 3780, 3970, 4536, 4764, 5040, 5558, 5670, 5955, 6352, 6480, 7146, 7560, 7940, 8337, 9072, 9528, 10719, 11116, 11340, 11910, 13895, 14292, 15120, 15880, 16674, 17865, 19056, 21438, 22232, 22680, 23820, 25011, 27790, 28584, 31760, 32157, 33348, 35730, 41685, 42876, 44464, 45360, 47640, 50022, 53595, 55580, 57168, 64314, 66696, 71460, 75033, 83370, 85752, 95280, 100044, 107190, 111160, 125055, 128628, 133392, 142920, 150066, 160785, 166740, 171504, 200088, 214380, 222320, 225099, 250110, 257256, 285840, 300132, 321570, 333480, 375165, 400176, 428760, 450198, 500220, 514512, 600264, 643140, 666960, 750330, 857520, 900396, 1000440, 1125495, 1200528, 1286280, 1500660, 1800792, 2000880, 2250990, 2572560, 3001320, 3601584, 4501980, 6002640, 9003960, 18007920]

約数ペア:

[(1, 18007920), (2, 9003960), (3, 6002640), (4, 4501980), (5, 3601584), (6, 3001320), (7, 2572560), (8, 2250990), (9, 2000880), (10, 1800792), (12, 1500660), (14, 1286280), (15, 1200528), (16, 1125495), (18, 1000440), (20, 900396), (21, 857520), (24, 750330), (27, 666960), (28, 643140), (30, 600264), (35, 514512), (36, 500220), (40, 450198), (42, 428760), (45, 400176), (48, 375165), (54, 333480), (56, 321570), (60, 300132), (63, 285840), (70, 257256), (72, 250110), (80, 225099), (81, 222320), (84, 214380), (90, 200088), (105, 171504), (108, 166740), (112, 160785), (120, 150066), (126, 142920), (135, 133392), (140, 128628), (144, 125055), (162, 111160), (168, 107190), (180, 100044), (189, 95280), (210, 85752), (216, 83370), (240, 75033), (252, 71460), (270, 66696), (280, 64314), (315, 57168), (324, 55580), (336, 53595), (360, 50022), (378, 47640), (397, 45360), (405, 44464), (420, 42876), (432, 41685), (504, 35730), (540, 33348), (560, 32157), (567, 31760), (630, 28584), (648, 27790), (720, 25011), (756, 23820), (794, 22680), (810, 22232), (840, 21438), (945, 19056), (1008, 17865), (1080, 16674), (1134, 15880), (1191, 15120), (1260, 14292), (1296, 13895), (1512, 11910), (1588, 11340), (1620, 11116), (1680, 10719), (1890, 9528), (1985, 9072), (2160, 8337), (2268, 7940), (2382, 7560), (2520, 7146), (2779, 6480), (2835, 6352), (3024, 5955), (3176, 5670), (3240, 5558), (3573, 5040), (3780, 4764), (3970, 4536)]