20199480

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{173}}^1$

素因数の和:333

約数の個数: 128

約数和(自身を含む): 70156800

約数和(自身を除く): 49957320

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, 139, 140, 168, 173, 210, 278, 280, 346, 417, 420, 519, 556, 692, 695, 834, 840, 865, 973, 1038, 1112, 1211, 1384, 1390, 1668, 1730, 1946, 2076, 2085, 2422, 2595, 2780, 2919, 3336, 3460, 3633, 3892, 4152, 4170, 4844, 4865, 5190, 5560, 5838, 6055, 6920, 7266, 7784, 8340, 9688, 9730, 10380, 11676, 12110, 14532, 14595, 16680, 18165, 19460, 20760, 23352, 24047, 24220, 29064, 29190, 36330, 38920, 48094, 48440, 58380, 72141, 72660, 96188, 116760, 120235, 144282, 145320, 168329, 192376, 240470, 288564, 336658, 360705, 480940, 504987, 577128, 673316, 721410, 841645, 961880, 1009974, 1346632, 1442820, 1683290, 2019948, 2524935, 2885640, 3366580, 4039896, 5049870, 6733160, 10099740, 20199480]

約数ペア:

[(1, 20199480), (2, 10099740), (3, 6733160), (4, 5049870), (5, 4039896), (6, 3366580), (7, 2885640), (8, 2524935), (10, 2019948), (12, 1683290), (14, 1442820), (15, 1346632), (20, 1009974), (21, 961880), (24, 841645), (28, 721410), (30, 673316), (35, 577128), (40, 504987), (42, 480940), (56, 360705), (60, 336658), (70, 288564), (84, 240470), (105, 192376), (120, 168329), (139, 145320), (140, 144282), (168, 120235), (173, 116760), (210, 96188), (278, 72660), (280, 72141), (346, 58380), (417, 48440), (420, 48094), (519, 38920), (556, 36330), (692, 29190), (695, 29064), (834, 24220), (840, 24047), (865, 23352), (973, 20760), (1038, 19460), (1112, 18165), (1211, 16680), (1384, 14595), (1390, 14532), (1668, 12110), (1730, 11676), (1946, 10380), (2076, 9730), (2085, 9688), (2422, 8340), (2595, 7784), (2780, 7266), (2919, 6920), (3336, 6055), (3460, 5838), (3633, 5560), (3892, 5190), (4152, 4865), (4170, 4844)]