2018181880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{7507}}^1$

素因数の和:7589

約数の個数: 128

約数和(自身を含む): 5449006080

約数和(自身を除く): 3430824200

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 47, 52, 55, 65, 88, 94, 104, 110, 130, 143, 188, 220, 235, 260, 286, 376, 440, 470, 517, 520, 572, 611, 715, 940, 1034, 1144, 1222, 1430, 1880, 2068, 2444, 2585, 2860, 3055, 4136, 4888, 5170, 5720, 6110, 6721, 7507, 10340, 12220, 13442, 15014, 20680, 24440, 26884, 30028, 33605, 37535, 53768, 60056, 67210, 75070, 82577, 97591, 134420, 150140, 165154, 195182, 268840, 300280, 330308, 352829, 390364, 412885, 487955, 660616, 705658, 780728, 825770, 975910, 1073501, 1411316, 1651540, 1764145, 1951820, 2147002, 2822632, 3303080, 3528290, 3881119, 3903640, 4294004, 4586777, 5367505, 7056580, 7762238, 8588008, 9173554, 10735010, 14113160, 15524476, 18347108, 19405595, 21470020, 22933885, 31048952, 36694216, 38811190, 42940040, 45867770, 50454547, 77622380, 91735540, 100909094, 155244760, 183471080, 201818188, 252272735, 403636376, 504545470, 1009090940, 2018181880]

約数ペア:

[(1, 2018181880), (2, 1009090940), (4, 504545470), (5, 403636376), (8, 252272735), (10, 201818188), (11, 183471080), (13, 155244760), (20, 100909094), (22, 91735540), (26, 77622380), (40, 50454547), (44, 45867770), (47, 42940040), (52, 38811190), (55, 36694216), (65, 31048952), (88, 22933885), (94, 21470020), (104, 19405595), (110, 18347108), (130, 15524476), (143, 14113160), (188, 10735010), (220, 9173554), (235, 8588008), (260, 7762238), (286, 7056580), (376, 5367505), (440, 4586777), (470, 4294004), (517, 3903640), (520, 3881119), (572, 3528290), (611, 3303080), (715, 2822632), (940, 2147002), (1034, 1951820), (1144, 1764145), (1222, 1651540), (1430, 1411316), (1880, 1073501), (2068, 975910), (2444, 825770), (2585, 780728), (2860, 705658), (3055, 660616), (4136, 487955), (4888, 412885), (5170, 390364), (5720, 352829), (6110, 330308), (6721, 300280), (7507, 268840), (10340, 195182), (12220, 165154), (13442, 150140), (15014, 134420), (20680, 97591), (24440, 82577), (26884, 75070), (30028, 67210), (33605, 60056), (37535, 53768)]