20182208920

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{277}}^1\times {\mathrm{983}}^1$

素因数の和:1397

約数の個数: 128

約数和(自身を含む): 48746966400

約数和(自身を除く): 28564757480

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 109, 136, 170, 218, 277, 340, 436, 545, 554, 680, 872, 983, 1090, 1108, 1385, 1853, 1966, 2180, 2216, 2770, 3706, 3932, 4360, 4709, 4915, 5540, 7412, 7864, 9265, 9418, 9830, 11080, 14824, 16711, 18530, 18836, 19660, 23545, 30193, 33422, 37060, 37672, 39320, 47090, 60386, 66844, 74120, 83555, 94180, 107147, 120772, 133688, 150965, 167110, 188360, 214294, 241544, 272291, 301930, 334220, 428588, 513281, 535735, 544582, 603860, 668440, 857176, 1026562, 1071470, 1089164, 1207720, 1361455, 1821499, 2053124, 2142940, 2178328, 2566405, 2722910, 3642998, 4106248, 4285880, 4628947, 5132810, 5445820, 7285996, 9107495, 9257894, 10265620, 10891640, 14571992, 18214990, 18515788, 20531240, 23144735, 29679719, 36429980, 37031576, 46289470, 59359438, 72859960, 92578940, 118718876, 148398595, 185157880, 237437752, 296797190, 504555223, 593594380, 1009110446, 1187188760, 2018220892, 2522776115, 4036441784, 5045552230, 10091104460, 20182208920]

約数ペア:

[(1, 20182208920), (2, 10091104460), (4, 5045552230), (5, 4036441784), (8, 2522776115), (10, 2018220892), (17, 1187188760), (20, 1009110446), (34, 593594380), (40, 504555223), (68, 296797190), (85, 237437752), (109, 185157880), (136, 148398595), (170, 118718876), (218, 92578940), (277, 72859960), (340, 59359438), (436, 46289470), (545, 37031576), (554, 36429980), (680, 29679719), (872, 23144735), (983, 20531240), (1090, 18515788), (1108, 18214990), (1385, 14571992), (1853, 10891640), (1966, 10265620), (2180, 9257894), (2216, 9107495), (2770, 7285996), (3706, 5445820), (3932, 5132810), (4360, 4628947), (4709, 4285880), (4915, 4106248), (5540, 3642998), (7412, 2722910), (7864, 2566405), (9265, 2178328), (9418, 2142940), (9830, 2053124), (11080, 1821499), (14824, 1361455), (16711, 1207720), (18530, 1089164), (18836, 1071470), (19660, 1026562), (23545, 857176), (30193, 668440), (33422, 603860), (37060, 544582), (37672, 535735), (39320, 513281), (47090, 428588), (60386, 334220), (66844, 301930), (74120, 272291), (83555, 241544), (94180, 214294), (107147, 188360), (120772, 167110), (133688, 150965)]