18722760

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{719}}^1$

素因数の和:771

約数の個数: 128

約数和(自身を含む): 66355200

約数和(自身を除く): 47632440

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 31, 35, 40, 42, 56, 60, 62, 70, 84, 93, 105, 120, 124, 140, 155, 168, 186, 210, 217, 248, 280, 310, 372, 420, 434, 465, 620, 651, 719, 744, 840, 868, 930, 1085, 1240, 1302, 1438, 1736, 1860, 2157, 2170, 2604, 2876, 3255, 3595, 3720, 4314, 4340, 5033, 5208, 5752, 6510, 7190, 8628, 8680, 10066, 10785, 13020, 14380, 15099, 17256, 20132, 21570, 22289, 25165, 26040, 28760, 30198, 40264, 43140, 44578, 50330, 60396, 66867, 75495, 86280, 89156, 100660, 111445, 120792, 133734, 150990, 156023, 178312, 201320, 222890, 267468, 301980, 312046, 334335, 445780, 468069, 534936, 603960, 624092, 668670, 780115, 891560, 936138, 1248184, 1337340, 1560230, 1872276, 2340345, 2674680, 3120460, 3744552, 4680690, 6240920, 9361380, 18722760]

約数ペア:

[(1, 18722760), (2, 9361380), (3, 6240920), (4, 4680690), (5, 3744552), (6, 3120460), (7, 2674680), (8, 2340345), (10, 1872276), (12, 1560230), (14, 1337340), (15, 1248184), (20, 936138), (21, 891560), (24, 780115), (28, 668670), (30, 624092), (31, 603960), (35, 534936), (40, 468069), (42, 445780), (56, 334335), (60, 312046), (62, 301980), (70, 267468), (84, 222890), (93, 201320), (105, 178312), (120, 156023), (124, 150990), (140, 133734), (155, 120792), (168, 111445), (186, 100660), (210, 89156), (217, 86280), (248, 75495), (280, 66867), (310, 60396), (372, 50330), (420, 44578), (434, 43140), (465, 40264), (620, 30198), (651, 28760), (719, 26040), (744, 25165), (840, 22289), (868, 21570), (930, 20132), (1085, 17256), (1240, 15099), (1302, 14380), (1438, 13020), (1736, 10785), (1860, 10066), (2157, 8680), (2170, 8628), (2604, 7190), (2876, 6510), (3255, 5752), (3595, 5208), (3720, 5033), (4314, 4340)]