19804680

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{271}}^1$

素因数の和:324

約数の個数: 192

約数和(自身を含む): 76377600

約数和(自身を除く): 56572920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 29, 30, 35, 36, 40, 42, 45, 56, 58, 60, 63, 70, 72, 84, 87, 90, 105, 116, 120, 126, 140, 145, 168, 174, 180, 203, 210, 232, 252, 261, 271, 280, 290, 315, 348, 360, 406, 420, 435, 504, 522, 542, 580, 609, 630, 696, 812, 813, 840, 870, 1015, 1044, 1084, 1160, 1218, 1260, 1305, 1355, 1624, 1626, 1740, 1827, 1897, 2030, 2088, 2168, 2436, 2439, 2520, 2610, 2710, 3045, 3252, 3480, 3654, 3794, 4060, 4065, 4872, 4878, 5220, 5420, 5691, 6090, 6504, 7308, 7588, 7859, 8120, 8130, 9135, 9485, 9756, 10440, 10840, 11382, 12180, 12195, 14616, 15176, 15718, 16260, 17073, 18270, 18970, 19512, 22764, 23577, 24360, 24390, 28455, 31436, 32520, 34146, 36540, 37940, 39295, 45528, 47154, 48780, 55013, 56910, 62872, 68292, 70731, 73080, 75880, 78590, 85365, 94308, 97560, 110026, 113820, 117885, 136584, 141462, 157180, 165039, 170730, 188616, 220052, 227640, 235770, 275065, 282924, 314360, 330078, 341460, 353655, 440104, 471540, 495117, 550130, 565848, 660156, 682920, 707310, 825195, 943080, 990234, 1100260, 1320312, 1414620, 1650390, 1980468, 2200520, 2475585, 2829240, 3300780, 3960936, 4951170, 6601560, 9902340, 19804680]

約数ペア:

[(1, 19804680), (2, 9902340), (3, 6601560), (4, 4951170), (5, 3960936), (6, 3300780), (7, 2829240), (8, 2475585), (9, 2200520), (10, 1980468), (12, 1650390), (14, 1414620), (15, 1320312), (18, 1100260), (20, 990234), (21, 943080), (24, 825195), (28, 707310), (29, 682920), (30, 660156), (35, 565848), (36, 550130), (40, 495117), (42, 471540), (45, 440104), (56, 353655), (58, 341460), (60, 330078), (63, 314360), (70, 282924), (72, 275065), (84, 235770), (87, 227640), (90, 220052), (105, 188616), (116, 170730), (120, 165039), (126, 157180), (140, 141462), (145, 136584), (168, 117885), (174, 113820), (180, 110026), (203, 97560), (210, 94308), (232, 85365), (252, 78590), (261, 75880), (271, 73080), (280, 70731), (290, 68292), (315, 62872), (348, 56910), (360, 55013), (406, 48780), (420, 47154), (435, 45528), (504, 39295), (522, 37940), (542, 36540), (580, 34146), (609, 32520), (630, 31436), (696, 28455), (812, 24390), (813, 24360), (840, 23577), (870, 22764), (1015, 19512), (1044, 18970), (1084, 18270), (1160, 17073), (1218, 16260), (1260, 15718), (1305, 15176), (1355, 14616), (1624, 12195), (1626, 12180), (1740, 11382), (1827, 10840), (1897, 10440), (2030, 9756), (2088, 9485), (2168, 9135), (2436, 8130), (2439, 8120), (2520, 7859), (2610, 7588), (2710, 7308), (3045, 6504), (3252, 6090), (3480, 5691), (3654, 5420), (3794, 5220), (4060, 4878), (4065, 4872)]