20910864

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1$

素因数の和:125

約数の個数: 160

約数和(自身を含む): 63995904

約数和(自身を除く): 43085040

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 23, 24, 26, 31, 39, 46, 47, 48, 52, 62, 69, 78, 92, 93, 94, 104, 124, 138, 141, 156, 184, 186, 188, 208, 248, 276, 282, 299, 312, 368, 372, 376, 403, 496, 552, 564, 598, 611, 624, 713, 744, 752, 806, 897, 1081, 1104, 1128, 1196, 1209, 1222, 1426, 1457, 1488, 1612, 1794, 1833, 2139, 2162, 2256, 2392, 2418, 2444, 2852, 2914, 3224, 3243, 3588, 3666, 4278, 4324, 4371, 4784, 4836, 4888, 5704, 5828, 6448, 6486, 7176, 7332, 8556, 8648, 8742, 9269, 9672, 9776, 11408, 11656, 12972, 14053, 14352, 14664, 17112, 17296, 17484, 18538, 18941, 19344, 23312, 25944, 27807, 28106, 29328, 33511, 34224, 34968, 37076, 37882, 42159, 51888, 55614, 56212, 56823, 67022, 69936, 74152, 75764, 84318, 100533, 111228, 112424, 113646, 134044, 148304, 151528, 168636, 201066, 222456, 224848, 227292, 268088, 303056, 337272, 402132, 435643, 444912, 454584, 536176, 674544, 804264, 871286, 909168, 1306929, 1608528, 1742572, 2613858, 3485144, 5227716, 6970288, 10455432, 20910864]

約数ペア:

[(1, 20910864), (2, 10455432), (3, 6970288), (4, 5227716), (6, 3485144), (8, 2613858), (12, 1742572), (13, 1608528), (16, 1306929), (23, 909168), (24, 871286), (26, 804264), (31, 674544), (39, 536176), (46, 454584), (47, 444912), (48, 435643), (52, 402132), (62, 337272), (69, 303056), (78, 268088), (92, 227292), (93, 224848), (94, 222456), (104, 201066), (124, 168636), (138, 151528), (141, 148304), (156, 134044), (184, 113646), (186, 112424), (188, 111228), (208, 100533), (248, 84318), (276, 75764), (282, 74152), (299, 69936), (312, 67022), (368, 56823), (372, 56212), (376, 55614), (403, 51888), (496, 42159), (552, 37882), (564, 37076), (598, 34968), (611, 34224), (624, 33511), (713, 29328), (744, 28106), (752, 27807), (806, 25944), (897, 23312), (1081, 19344), (1104, 18941), (1128, 18538), (1196, 17484), (1209, 17296), (1222, 17112), (1426, 14664), (1457, 14352), (1488, 14053), (1612, 12972), (1794, 11656), (1833, 11408), (2139, 9776), (2162, 9672), (2256, 9269), (2392, 8742), (2418, 8648), (2444, 8556), (2852, 7332), (2914, 7176), (3224, 6486), (3243, 6448), (3588, 5828), (3666, 5704), (4278, 4888), (4324, 4836), (4371, 4784)]