668519748

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{173}}^1\times {\mathrm{359}}^1$

素因数の和:578

約数の個数: 144

約数和(自身を含む): 1915280640

約数和(自身を除く): 1246760892

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 23, 26, 36, 39, 46, 52, 69, 78, 92, 117, 138, 156, 173, 207, 234, 276, 299, 346, 359, 414, 468, 519, 598, 692, 718, 828, 897, 1038, 1077, 1196, 1436, 1557, 1794, 2076, 2154, 2249, 2691, 3114, 3231, 3588, 3979, 4308, 4498, 4667, 5382, 6228, 6462, 6747, 7958, 8257, 8996, 9334, 10764, 11937, 12924, 13494, 14001, 15916, 16514, 18668, 20241, 23874, 24771, 26988, 28002, 33028, 35811, 40482, 42003, 47748, 49542, 51727, 56004, 62107, 71622, 74313, 80964, 84006, 99084, 103454, 107341, 124214, 143244, 148626, 155181, 168012, 186321, 206908, 214682, 248428, 297252, 310362, 322023, 372642, 429364, 465543, 558963, 620724, 644046, 745284, 807391, 931086, 966069, 1117926, 1288092, 1428461, 1614782, 1862172, 1932138, 2235852, 2422173, 2856922, 3229564, 3864276, 4285383, 4844346, 5713844, 7266519, 8570766, 9688692, 12856149, 14533038, 17141532, 18569993, 25712298, 29066076, 37139986, 51424596, 55709979, 74279972, 111419958, 167129937, 222839916, 334259874, 668519748]

約数ペア:

[(1, 668519748), (2, 334259874), (3, 222839916), (4, 167129937), (6, 111419958), (9, 74279972), (12, 55709979), (13, 51424596), (18, 37139986), (23, 29066076), (26, 25712298), (36, 18569993), (39, 17141532), (46, 14533038), (52, 12856149), (69, 9688692), (78, 8570766), (92, 7266519), (117, 5713844), (138, 4844346), (156, 4285383), (173, 3864276), (207, 3229564), (234, 2856922), (276, 2422173), (299, 2235852), (346, 1932138), (359, 1862172), (414, 1614782), (468, 1428461), (519, 1288092), (598, 1117926), (692, 966069), (718, 931086), (828, 807391), (897, 745284), (1038, 644046), (1077, 620724), (1196, 558963), (1436, 465543), (1557, 429364), (1794, 372642), (2076, 322023), (2154, 310362), (2249, 297252), (2691, 248428), (3114, 214682), (3231, 206908), (3588, 186321), (3979, 168012), (4308, 155181), (4498, 148626), (4667, 143244), (5382, 124214), (6228, 107341), (6462, 103454), (6747, 99084), (7958, 84006), (8257, 80964), (8996, 74313), (9334, 71622), (10764, 62107), (11937, 56004), (12924, 51727), (13494, 49542), (14001, 47748), (15916, 42003), (16514, 40482), (18668, 35811), (20241, 33028), (23874, 28002), (24771, 26988)]