18696720

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{359}}^1$

素因数の和:413

約数の個数: 160

約数和(自身を含む): 68567040

約数和(自身を除く): 49870320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 31, 35, 40, 42, 48, 56, 60, 62, 70, 80, 84, 93, 105, 112, 120, 124, 140, 155, 168, 186, 210, 217, 240, 248, 280, 310, 336, 359, 372, 420, 434, 465, 496, 560, 620, 651, 718, 744, 840, 868, 930, 1077, 1085, 1240, 1302, 1436, 1488, 1680, 1736, 1795, 1860, 2154, 2170, 2480, 2513, 2604, 2872, 3255, 3472, 3590, 3720, 4308, 4340, 5026, 5208, 5385, 5744, 6510, 7180, 7440, 7539, 8616, 8680, 10052, 10416, 10770, 11129, 12565, 13020, 14360, 15078, 17232, 17360, 20104, 21540, 22258, 25130, 26040, 28720, 30156, 33387, 37695, 40208, 43080, 44516, 50260, 52080, 55645, 60312, 66774, 75390, 77903, 86160, 89032, 100520, 111290, 120624, 133548, 150780, 155806, 166935, 178064, 201040, 222580, 233709, 267096, 301560, 311612, 333870, 389515, 445160, 467418, 534192, 603120, 623224, 667740, 779030, 890320, 934836, 1168545, 1246448, 1335480, 1558060, 1869672, 2337090, 2670960, 3116120, 3739344, 4674180, 6232240, 9348360, 18696720]

約数ペア:

[(1, 18696720), (2, 9348360), (3, 6232240), (4, 4674180), (5, 3739344), (6, 3116120), (7, 2670960), (8, 2337090), (10, 1869672), (12, 1558060), (14, 1335480), (15, 1246448), (16, 1168545), (20, 934836), (21, 890320), (24, 779030), (28, 667740), (30, 623224), (31, 603120), (35, 534192), (40, 467418), (42, 445160), (48, 389515), (56, 333870), (60, 311612), (62, 301560), (70, 267096), (80, 233709), (84, 222580), (93, 201040), (105, 178064), (112, 166935), (120, 155806), (124, 150780), (140, 133548), (155, 120624), (168, 111290), (186, 100520), (210, 89032), (217, 86160), (240, 77903), (248, 75390), (280, 66774), (310, 60312), (336, 55645), (359, 52080), (372, 50260), (420, 44516), (434, 43080), (465, 40208), (496, 37695), (560, 33387), (620, 30156), (651, 28720), (718, 26040), (744, 25130), (840, 22258), (868, 21540), (930, 20104), (1077, 17360), (1085, 17232), (1240, 15078), (1302, 14360), (1436, 13020), (1488, 12565), (1680, 11129), (1736, 10770), (1795, 10416), (1860, 10052), (2154, 8680), (2170, 8616), (2480, 7539), (2513, 7440), (2604, 7180), (2872, 6510), (3255, 5744), (3472, 5385), (3590, 5208), (3720, 5026), (4308, 4340)]