19810911888

素因数分解:

$2^4\times 3^2\times {\mathrm{71}}^1\times {\mathrm{587}}^1\times {\mathrm{3301}}^1$

素因数の和:3973

約数の個数: 120

約数和(自身を含む): 56336769216

約数和(自身を除く): 36525857328

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 71, 72, 142, 144, 213, 284, 426, 568, 587, 639, 852, 1136, 1174, 1278, 1704, 1761, 2348, 2556, 3301, 3408, 3522, 4696, 5112, 5283, 6602, 7044, 9392, 9903, 10224, 10566, 13204, 14088, 19806, 21132, 26408, 28176, 29709, 39612, 41677, 42264, 52816, 59418, 79224, 83354, 84528, 118836, 125031, 158448, 166708, 234371, 237672, 250062, 333416, 375093, 468742, 475344, 500124, 666832, 703113, 750186, 937484, 1000248, 1406226, 1500372, 1874968, 1937687, 2000496, 2109339, 2812452, 3000744, 3749936, 3875374, 4218678, 5624904, 5813061, 6001488, 7750748, 8437356, 11249808, 11626122, 15501496, 16874712, 17439183, 23252244, 31002992, 33749424, 34878366, 46504488, 69756732, 93008976, 137575777, 139513464, 275151554, 279026928, 412727331, 550303108, 825454662, 1100606216, 1238181993, 1650909324, 2201212432, 2476363986, 3301818648, 4952727972, 6603637296, 9905455944, 19810911888]

約数ペア:

[(1, 19810911888), (2, 9905455944), (3, 6603637296), (4, 4952727972), (6, 3301818648), (8, 2476363986), (9, 2201212432), (12, 1650909324), (16, 1238181993), (18, 1100606216), (24, 825454662), (36, 550303108), (48, 412727331), (71, 279026928), (72, 275151554), (142, 139513464), (144, 137575777), (213, 93008976), (284, 69756732), (426, 46504488), (568, 34878366), (587, 33749424), (639, 31002992), (852, 23252244), (1136, 17439183), (1174, 16874712), (1278, 15501496), (1704, 11626122), (1761, 11249808), (2348, 8437356), (2556, 7750748), (3301, 6001488), (3408, 5813061), (3522, 5624904), (4696, 4218678), (5112, 3875374), (5283, 3749936), (6602, 3000744), (7044, 2812452), (9392, 2109339), (9903, 2000496), (10224, 1937687), (10566, 1874968), (13204, 1500372), (14088, 1406226), (19806, 1000248), (21132, 937484), (26408, 750186), (28176, 703113), (29709, 666832), (39612, 500124), (41677, 475344), (42264, 468742), (52816, 375093), (59418, 333416), (79224, 250062), (83354, 237672), (84528, 234371), (118836, 166708), (125031, 158448)]