1561213888

素因数分解:

$2^6\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1$

素因数の和:235

約数の個数: 168

約数和(自身を含む): 3614440320

約数和(自身を除く): 2053226432

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 32, 38, 52, 64, 71, 76, 104, 107, 142, 152, 169, 208, 214, 247, 284, 304, 338, 416, 428, 494, 568, 608, 676, 832, 856, 923, 988, 1136, 1216, 1349, 1352, 1391, 1712, 1846, 1976, 2033, 2272, 2698, 2704, 2782, 3211, 3424, 3692, 3952, 4066, 4544, 5396, 5408, 5564, 6422, 6848, 7384, 7597, 7904, 8132, 10792, 10816, 11128, 11999, 12844, 14768, 15194, 15808, 16264, 17537, 18083, 21584, 22256, 23998, 25688, 26429, 29536, 30388, 32528, 35074, 36166, 43168, 44512, 47996, 51376, 52858, 59072, 60776, 65056, 70148, 72332, 86336, 89024, 95992, 98761, 102752, 105716, 121552, 130112, 140296, 144343, 144664, 191984, 197522, 205504, 211432, 227981, 243104, 280592, 288686, 289328, 343577, 383968, 395044, 422864, 455962, 486208, 561184, 577372, 578656, 687154, 767936, 790088, 845728, 911924, 1122368, 1154744, 1157312, 1283893, 1374308, 1580176, 1691456, 1823848, 1876459, 2309488, 2567786, 2748616, 3160352, 3647696, 3752918, 4618976, 5135572, 5497232, 6320704, 7295392, 7505836, 9237952, 10271144, 10994464, 14590784, 15011672, 20542288, 21988928, 24393967, 30023344, 41084576, 48787934, 60046688, 82169152, 97575868, 120093376, 195151736, 390303472, 780606944, 1561213888]

約数ペア:

[(1, 1561213888), (2, 780606944), (4, 390303472), (8, 195151736), (13, 120093376), (16, 97575868), (19, 82169152), (26, 60046688), (32, 48787934), (38, 41084576), (52, 30023344), (64, 24393967), (71, 21988928), (76, 20542288), (104, 15011672), (107, 14590784), (142, 10994464), (152, 10271144), (169, 9237952), (208, 7505836), (214, 7295392), (247, 6320704), (284, 5497232), (304, 5135572), (338, 4618976), (416, 3752918), (428, 3647696), (494, 3160352), (568, 2748616), (608, 2567786), (676, 2309488), (832, 1876459), (856, 1823848), (923, 1691456), (988, 1580176), (1136, 1374308), (1216, 1283893), (1349, 1157312), (1352, 1154744), (1391, 1122368), (1712, 911924), (1846, 845728), (1976, 790088), (2033, 767936), (2272, 687154), (2698, 578656), (2704, 577372), (2782, 561184), (3211, 486208), (3424, 455962), (3692, 422864), (3952, 395044), (4066, 383968), (4544, 343577), (5396, 289328), (5408, 288686), (5564, 280592), (6422, 243104), (6848, 227981), (7384, 211432), (7597, 205504), (7904, 197522), (8132, 191984), (10792, 144664), (10816, 144343), (11128, 140296), (11999, 130112), (12844, 121552), (14768, 105716), (15194, 102752), (15808, 98761), (16264, 95992), (17537, 89024), (18083, 86336), (21584, 72332), (22256, 70148), (23998, 65056), (25688, 60776), (26429, 59072), (29536, 52858), (30388, 51376), (32528, 47996), (35074, 44512), (36166, 43168)]