20150780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1$

素因数の和:183

約数の個数: 96

約数和(自身を含む): 49787136

約数和(自身を除く): 29636356

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 47, 52, 65, 68, 85, 94, 97, 130, 170, 188, 194, 221, 235, 260, 340, 388, 442, 470, 485, 611, 799, 884, 940, 970, 1105, 1222, 1261, 1598, 1649, 1940, 2210, 2444, 2522, 3055, 3196, 3298, 3995, 4420, 4559, 5044, 6110, 6305, 6596, 7990, 8245, 9118, 10387, 12220, 12610, 15980, 16490, 18236, 20774, 21437, 22795, 25220, 32980, 41548, 42874, 45590, 51935, 59267, 77503, 85748, 91180, 103870, 107185, 118534, 155006, 207740, 214370, 237068, 296335, 310012, 387515, 428740, 592670, 775030, 1007539, 1185340, 1550060, 2015078, 4030156, 5037695, 10075390, 20150780]

約数ペア:

[(1, 20150780), (2, 10075390), (4, 5037695), (5, 4030156), (10, 2015078), (13, 1550060), (17, 1185340), (20, 1007539), (26, 775030), (34, 592670), (47, 428740), (52, 387515), (65, 310012), (68, 296335), (85, 237068), (94, 214370), (97, 207740), (130, 155006), (170, 118534), (188, 107185), (194, 103870), (221, 91180), (235, 85748), (260, 77503), (340, 59267), (388, 51935), (442, 45590), (470, 42874), (485, 41548), (611, 32980), (799, 25220), (884, 22795), (940, 21437), (970, 20774), (1105, 18236), (1222, 16490), (1261, 15980), (1598, 12610), (1649, 12220), (1940, 10387), (2210, 9118), (2444, 8245), (2522, 7990), (3055, 6596), (3196, 6305), (3298, 6110), (3995, 5044), (4420, 4559)]