721147128

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{239}}^1\times {\mathrm{509}}^1$

素因数の和:789

約数の個数: 128

約数和(自身を含む): 2056320000

約数和(自身を除く): 1335172872

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 19, 24, 26, 38, 39, 52, 57, 76, 78, 104, 114, 152, 156, 228, 239, 247, 312, 456, 478, 494, 509, 717, 741, 956, 988, 1018, 1434, 1482, 1527, 1912, 1976, 2036, 2868, 2964, 3054, 3107, 4072, 4541, 5736, 5928, 6108, 6214, 6617, 9082, 9321, 9671, 12216, 12428, 13234, 13623, 18164, 18642, 19342, 19851, 24856, 26468, 27246, 29013, 36328, 37284, 38684, 39702, 52936, 54492, 58026, 59033, 74568, 77368, 79404, 108984, 116052, 118066, 121651, 125723, 158808, 177099, 232104, 236132, 243302, 251446, 354198, 364953, 377169, 472264, 486604, 502892, 708396, 729906, 754338, 973208, 1005784, 1416792, 1459812, 1508676, 1581463, 2311369, 2919624, 3017352, 3162926, 4622738, 4744389, 6325852, 6934107, 9245476, 9488778, 12651704, 13868214, 18490952, 18977556, 27736428, 30047797, 37955112, 55472856, 60095594, 90143391, 120191188, 180286782, 240382376, 360573564, 721147128]

約数ペア:

[(1, 721147128), (2, 360573564), (3, 240382376), (4, 180286782), (6, 120191188), (8, 90143391), (12, 60095594), (13, 55472856), (19, 37955112), (24, 30047797), (26, 27736428), (38, 18977556), (39, 18490952), (52, 13868214), (57, 12651704), (76, 9488778), (78, 9245476), (104, 6934107), (114, 6325852), (152, 4744389), (156, 4622738), (228, 3162926), (239, 3017352), (247, 2919624), (312, 2311369), (456, 1581463), (478, 1508676), (494, 1459812), (509, 1416792), (717, 1005784), (741, 973208), (956, 754338), (988, 729906), (1018, 708396), (1434, 502892), (1482, 486604), (1527, 472264), (1912, 377169), (1976, 364953), (2036, 354198), (2868, 251446), (2964, 243302), (3054, 236132), (3107, 232104), (4072, 177099), (4541, 158808), (5736, 125723), (5928, 121651), (6108, 118066), (6214, 116052), (6617, 108984), (9082, 79404), (9321, 77368), (9671, 74568), (12216, 59033), (12428, 58026), (13234, 54492), (13623, 52936), (18164, 39702), (18642, 38684), (19342, 37284), (19851, 36328), (24856, 29013), (26468, 27246)]