81722760

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{271}}^1\times {\mathrm{359}}^1$

素因数の和:651

約数の個数: 128

約数和(自身を含む): 282009600

約数和(自身を除く): 200286840

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 271, 280, 359, 420, 542, 718, 813, 840, 1077, 1084, 1355, 1436, 1626, 1795, 1897, 2154, 2168, 2513, 2710, 2872, 3252, 3590, 3794, 4065, 4308, 5026, 5385, 5420, 5691, 6504, 7180, 7539, 7588, 8130, 8616, 9485, 10052, 10770, 10840, 11382, 12565, 14360, 15078, 15176, 16260, 18970, 20104, 21540, 22764, 25130, 28455, 30156, 32520, 37695, 37940, 43080, 45528, 50260, 56910, 60312, 75390, 75880, 97289, 100520, 113820, 150780, 194578, 227640, 291867, 301560, 389156, 486445, 583734, 681023, 778312, 972890, 1167468, 1362046, 1459335, 1945780, 2043069, 2334936, 2724092, 2918670, 3405115, 3891560, 4086138, 5448184, 5837340, 6810230, 8172276, 10215345, 11674680, 13620460, 16344552, 20430690, 27240920, 40861380, 81722760]

約数ペア:

[(1, 81722760), (2, 40861380), (3, 27240920), (4, 20430690), (5, 16344552), (6, 13620460), (7, 11674680), (8, 10215345), (10, 8172276), (12, 6810230), (14, 5837340), (15, 5448184), (20, 4086138), (21, 3891560), (24, 3405115), (28, 2918670), (30, 2724092), (35, 2334936), (40, 2043069), (42, 1945780), (56, 1459335), (60, 1362046), (70, 1167468), (84, 972890), (105, 778312), (120, 681023), (140, 583734), (168, 486445), (210, 389156), (271, 301560), (280, 291867), (359, 227640), (420, 194578), (542, 150780), (718, 113820), (813, 100520), (840, 97289), (1077, 75880), (1084, 75390), (1355, 60312), (1436, 56910), (1626, 50260), (1795, 45528), (1897, 43080), (2154, 37940), (2168, 37695), (2513, 32520), (2710, 30156), (2872, 28455), (3252, 25130), (3590, 22764), (3794, 21540), (4065, 20104), (4308, 18970), (5026, 16260), (5385, 15176), (5420, 15078), (5691, 14360), (6504, 12565), (7180, 11382), (7539, 10840), (7588, 10770), (8130, 10052), (8616, 9485)]