251357920

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{271}}^1$

素因数の和:345

約数の個数: 192

約数和(自身を含む): 710664192

約数和(自身を除く): 459306272

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 31, 32, 34, 40, 44, 55, 62, 68, 80, 85, 88, 110, 124, 136, 155, 160, 170, 176, 187, 220, 248, 271, 272, 310, 340, 341, 352, 374, 440, 496, 527, 542, 544, 620, 680, 682, 748, 880, 935, 992, 1054, 1084, 1240, 1355, 1360, 1364, 1496, 1705, 1760, 1870, 2108, 2168, 2480, 2635, 2710, 2720, 2728, 2981, 2992, 3410, 3740, 4216, 4336, 4607, 4960, 5270, 5420, 5456, 5797, 5962, 5984, 6820, 7480, 8401, 8432, 8672, 9214, 10540, 10840, 10912, 11594, 11924, 13640, 14905, 14960, 16802, 16864, 18428, 21080, 21680, 23035, 23188, 23848, 27280, 28985, 29810, 29920, 33604, 36856, 42005, 42160, 43360, 46070, 46376, 47696, 50677, 54560, 57970, 59620, 67208, 73712, 84010, 84320, 92140, 92411, 92752, 95392, 101354, 115940, 119240, 134416, 142817, 147424, 168020, 184280, 184822, 185504, 202708, 231880, 238480, 253385, 268832, 285634, 336040, 368560, 369644, 405416, 462055, 463760, 476960, 506770, 571268, 672080, 714085, 737120, 739288, 810832, 924110, 927520, 1013540, 1142536, 1344160, 1428170, 1478576, 1570987, 1621664, 1848220, 2027080, 2285072, 2856340, 2957152, 3141974, 3696440, 4054160, 4570144, 5712680, 6283948, 7392880, 7854935, 8108320, 11425360, 12567896, 14785760, 15709870, 22850720, 25135792, 31419740, 50271584, 62839480, 125678960, 251357920]

約数ペア:

[(1, 251357920), (2, 125678960), (4, 62839480), (5, 50271584), (8, 31419740), (10, 25135792), (11, 22850720), (16, 15709870), (17, 14785760), (20, 12567896), (22, 11425360), (31, 8108320), (32, 7854935), (34, 7392880), (40, 6283948), (44, 5712680), (55, 4570144), (62, 4054160), (68, 3696440), (80, 3141974), (85, 2957152), (88, 2856340), (110, 2285072), (124, 2027080), (136, 1848220), (155, 1621664), (160, 1570987), (170, 1478576), (176, 1428170), (187, 1344160), (220, 1142536), (248, 1013540), (271, 927520), (272, 924110), (310, 810832), (340, 739288), (341, 737120), (352, 714085), (374, 672080), (440, 571268), (496, 506770), (527, 476960), (542, 463760), (544, 462055), (620, 405416), (680, 369644), (682, 368560), (748, 336040), (880, 285634), (935, 268832), (992, 253385), (1054, 238480), (1084, 231880), (1240, 202708), (1355, 185504), (1360, 184822), (1364, 184280), (1496, 168020), (1705, 147424), (1760, 142817), (1870, 134416), (2108, 119240), (2168, 115940), (2480, 101354), (2635, 95392), (2710, 92752), (2720, 92411), (2728, 92140), (2981, 84320), (2992, 84010), (3410, 73712), (3740, 67208), (4216, 59620), (4336, 57970), (4607, 54560), (4960, 50677), (5270, 47696), (5420, 46376), (5456, 46070), (5797, 43360), (5962, 42160), (5984, 42005), (6820, 36856), (7480, 33604), (8401, 29920), (8432, 29810), (8672, 28985), (9214, 27280), (10540, 23848), (10840, 23188), (10912, 23035), (11594, 21680), (11924, 21080), (13640, 18428), (14905, 16864), (14960, 16802)]