20963460

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1$

素因数の和:146

約数の個数: 192

約数和(自身を含む): 73543680

約数和(自身を除く): 52580220

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 37, 38, 42, 57, 60, 70, 71, 74, 76, 84, 95, 105, 111, 114, 133, 140, 142, 148, 185, 190, 210, 213, 222, 228, 259, 266, 284, 285, 355, 370, 380, 399, 420, 426, 444, 497, 518, 532, 555, 570, 665, 703, 710, 740, 777, 798, 852, 994, 1036, 1065, 1110, 1140, 1295, 1330, 1349, 1406, 1420, 1491, 1554, 1596, 1988, 1995, 2109, 2130, 2220, 2485, 2590, 2627, 2660, 2698, 2812, 2982, 3108, 3515, 3885, 3990, 4047, 4218, 4260, 4921, 4970, 5180, 5254, 5396, 5964, 6745, 7030, 7455, 7770, 7881, 7980, 8094, 8436, 9443, 9842, 9940, 10508, 10545, 13135, 13490, 14060, 14763, 14910, 15540, 15762, 16188, 18389, 18886, 19684, 20235, 21090, 24605, 26270, 26980, 28329, 29526, 29820, 31524, 36778, 37772, 39405, 40470, 42180, 47215, 49210, 49913, 52540, 55167, 56658, 59052, 73556, 73815, 78810, 80940, 91945, 94430, 98420, 99826, 110334, 113316, 141645, 147630, 149739, 157620, 183890, 188860, 199652, 220668, 249565, 275835, 283290, 295260, 299478, 349391, 367780, 499130, 551670, 566580, 598956, 698782, 748695, 998260, 1048173, 1103340, 1397564, 1497390, 1746955, 2096346, 2994780, 3493910, 4192692, 5240865, 6987820, 10481730, 20963460]

約数ペア:

[(1, 20963460), (2, 10481730), (3, 6987820), (4, 5240865), (5, 4192692), (6, 3493910), (7, 2994780), (10, 2096346), (12, 1746955), (14, 1497390), (15, 1397564), (19, 1103340), (20, 1048173), (21, 998260), (28, 748695), (30, 698782), (35, 598956), (37, 566580), (38, 551670), (42, 499130), (57, 367780), (60, 349391), (70, 299478), (71, 295260), (74, 283290), (76, 275835), (84, 249565), (95, 220668), (105, 199652), (111, 188860), (114, 183890), (133, 157620), (140, 149739), (142, 147630), (148, 141645), (185, 113316), (190, 110334), (210, 99826), (213, 98420), (222, 94430), (228, 91945), (259, 80940), (266, 78810), (284, 73815), (285, 73556), (355, 59052), (370, 56658), (380, 55167), (399, 52540), (420, 49913), (426, 49210), (444, 47215), (497, 42180), (518, 40470), (532, 39405), (555, 37772), (570, 36778), (665, 31524), (703, 29820), (710, 29526), (740, 28329), (777, 26980), (798, 26270), (852, 24605), (994, 21090), (1036, 20235), (1065, 19684), (1110, 18886), (1140, 18389), (1295, 16188), (1330, 15762), (1349, 15540), (1406, 14910), (1420, 14763), (1491, 14060), (1554, 13490), (1596, 13135), (1988, 10545), (1995, 10508), (2109, 9940), (2130, 9842), (2220, 9443), (2485, 8436), (2590, 8094), (2627, 7980), (2660, 7881), (2698, 7770), (2812, 7455), (2982, 7030), (3108, 6745), (3515, 5964), (3885, 5396), (3990, 5254), (4047, 5180), (4218, 4970), (4260, 4921)]