20857824

素因数分解:

$2^5\times 3^4\times {\mathrm{13}}^1\times {\mathrm{619}}^1$

素因数の和:654

約数の個数: 120

約数和(自身を含む): 66167640

約数和(自身を除く): 45309816

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 27, 32, 36, 39, 48, 52, 54, 72, 78, 81, 96, 104, 108, 117, 144, 156, 162, 208, 216, 234, 288, 312, 324, 351, 416, 432, 468, 619, 624, 648, 702, 864, 936, 1053, 1238, 1248, 1296, 1404, 1857, 1872, 2106, 2476, 2592, 2808, 3714, 3744, 4212, 4952, 5571, 5616, 7428, 8047, 8424, 9904, 11142, 11232, 14856, 16094, 16713, 16848, 19808, 22284, 24141, 29712, 32188, 33426, 33696, 44568, 48282, 50139, 59424, 64376, 66852, 72423, 89136, 96564, 100278, 128752, 133704, 144846, 178272, 193128, 200556, 217269, 257504, 267408, 289692, 386256, 401112, 434538, 534816, 579384, 651807, 772512, 802224, 869076, 1158768, 1303614, 1604448, 1738152, 2317536, 2607228, 3476304, 5214456, 6952608, 10428912, 20857824]

約数ペア:

[(1, 20857824), (2, 10428912), (3, 6952608), (4, 5214456), (6, 3476304), (8, 2607228), (9, 2317536), (12, 1738152), (13, 1604448), (16, 1303614), (18, 1158768), (24, 869076), (26, 802224), (27, 772512), (32, 651807), (36, 579384), (39, 534816), (48, 434538), (52, 401112), (54, 386256), (72, 289692), (78, 267408), (81, 257504), (96, 217269), (104, 200556), (108, 193128), (117, 178272), (144, 144846), (156, 133704), (162, 128752), (208, 100278), (216, 96564), (234, 89136), (288, 72423), (312, 66852), (324, 64376), (351, 59424), (416, 50139), (432, 48282), (468, 44568), (619, 33696), (624, 33426), (648, 32188), (702, 29712), (864, 24141), (936, 22284), (1053, 19808), (1238, 16848), (1248, 16713), (1296, 16094), (1404, 14856), (1857, 11232), (1872, 11142), (2106, 9904), (2476, 8424), (2592, 8047), (2808, 7428), (3714, 5616), (3744, 5571), (4212, 4952)]