19725291256

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{19}}^2\times {\mathrm{47}}^1\times {\mathrm{1201}}^1$

素因数の和:1314

約数の個数: 144

約数和(自身を含む): 43854441120

約数和(自身を除く): 24129149864

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 47, 76, 88, 94, 121, 152, 188, 209, 242, 361, 376, 418, 484, 517, 722, 836, 893, 968, 1034, 1201, 1444, 1672, 1786, 2068, 2299, 2402, 2888, 3572, 3971, 4136, 4598, 4804, 5687, 7144, 7942, 9196, 9608, 9823, 11374, 13211, 15884, 16967, 18392, 19646, 22748, 22819, 26422, 31768, 33934, 39292, 43681, 45496, 45638, 52844, 56447, 67868, 78584, 87362, 91276, 105688, 108053, 112894, 135736, 145321, 174724, 182552, 186637, 216106, 225788, 251009, 290642, 349448, 373274, 432212, 433561, 451576, 502018, 581284, 620917, 746548, 864424, 867122, 1004036, 1072493, 1162568, 1241834, 1493096, 1734244, 2008072, 2053007, 2144986, 2483668, 2761099, 3468488, 4106014, 4289972, 4769171, 4967336, 5522198, 6830087, 8212028, 8579944, 9538342, 11044396, 11797423, 13660174, 16424056, 19076684, 20377367, 22088792, 23594846, 27320348, 38153368, 40754734, 47189692, 52460881, 54640696, 81509468, 94379384, 104921762, 129771653, 163018936, 209843524, 224151037, 259543306, 419687048, 448302074, 519086612, 896604148, 1038173224, 1793208296, 2465661407, 4931322814, 9862645628, 19725291256]

約数ペア:

[(1, 19725291256), (2, 9862645628), (4, 4931322814), (8, 2465661407), (11, 1793208296), (19, 1038173224), (22, 896604148), (38, 519086612), (44, 448302074), (47, 419687048), (76, 259543306), (88, 224151037), (94, 209843524), (121, 163018936), (152, 129771653), (188, 104921762), (209, 94379384), (242, 81509468), (361, 54640696), (376, 52460881), (418, 47189692), (484, 40754734), (517, 38153368), (722, 27320348), (836, 23594846), (893, 22088792), (968, 20377367), (1034, 19076684), (1201, 16424056), (1444, 13660174), (1672, 11797423), (1786, 11044396), (2068, 9538342), (2299, 8579944), (2402, 8212028), (2888, 6830087), (3572, 5522198), (3971, 4967336), (4136, 4769171), (4598, 4289972), (4804, 4106014), (5687, 3468488), (7144, 2761099), (7942, 2483668), (9196, 2144986), (9608, 2053007), (9823, 2008072), (11374, 1734244), (13211, 1493096), (15884, 1241834), (16967, 1162568), (18392, 1072493), (19646, 1004036), (22748, 867122), (22819, 864424), (26422, 746548), (31768, 620917), (33934, 581284), (39292, 502018), (43681, 451576), (45496, 433561), (45638, 432212), (52844, 373274), (56447, 349448), (67868, 290642), (78584, 251009), (87362, 225788), (91276, 216106), (105688, 186637), (108053, 182552), (112894, 174724), (135736, 145321)]