20512363508

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{101}}^1\times {\mathrm{167}}^1\times {\mathrm{257}}^1$

素因数の和:562

約数の個数: 144

約数和(自身を含む): 45307309824

約数和(自身を除く): 24794946316

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 101, 167, 169, 182, 202, 257, 334, 338, 364, 404, 514, 668, 676, 707, 1028, 1169, 1183, 1313, 1414, 1799, 2171, 2338, 2366, 2626, 2828, 3341, 3598, 4342, 4676, 4732, 5252, 6682, 7196, 8684, 9191, 13364, 15197, 16867, 17069, 18382, 23387, 25957, 28223, 30394, 33734, 34138, 36764, 42919, 43433, 46774, 51914, 56446, 60788, 67468, 68276, 85838, 86866, 93548, 103828, 112892, 118069, 119483, 171676, 173732, 181699, 197561, 219271, 236138, 238966, 300433, 304031, 337441, 363398, 395122, 438542, 472276, 477932, 557947, 600866, 608062, 674882, 726796, 790244, 877084, 1115894, 1201732, 1216124, 1349764, 1534897, 2231788, 2362087, 2850523, 3069794, 3905629, 4334819, 4386733, 4724174, 5701046, 6139588, 7253311, 7811258, 8669638, 8773466, 9448348, 11402092, 14506622, 15622516, 17339276, 17546932, 19953661, 29013244, 30343733, 30707131, 39907322, 50773177, 56352647, 60687466, 61414262, 79814644, 101546354, 112705294, 121374932, 122828524, 203092708, 225410588, 394468529, 732584411, 788937058, 1465168822, 1577874116, 2930337644, 5128090877, 10256181754, 20512363508]

約数ペア:

[(1, 20512363508), (2, 10256181754), (4, 5128090877), (7, 2930337644), (13, 1577874116), (14, 1465168822), (26, 788937058), (28, 732584411), (52, 394468529), (91, 225410588), (101, 203092708), (167, 122828524), (169, 121374932), (182, 112705294), (202, 101546354), (257, 79814644), (334, 61414262), (338, 60687466), (364, 56352647), (404, 50773177), (514, 39907322), (668, 30707131), (676, 30343733), (707, 29013244), (1028, 19953661), (1169, 17546932), (1183, 17339276), (1313, 15622516), (1414, 14506622), (1799, 11402092), (2171, 9448348), (2338, 8773466), (2366, 8669638), (2626, 7811258), (2828, 7253311), (3341, 6139588), (3598, 5701046), (4342, 4724174), (4676, 4386733), (4732, 4334819), (5252, 3905629), (6682, 3069794), (7196, 2850523), (8684, 2362087), (9191, 2231788), (13364, 1534897), (15197, 1349764), (16867, 1216124), (17069, 1201732), (18382, 1115894), (23387, 877084), (25957, 790244), (28223, 726796), (30394, 674882), (33734, 608062), (34138, 600866), (36764, 557947), (42919, 477932), (43433, 472276), (46774, 438542), (51914, 395122), (56446, 363398), (60788, 337441), (67468, 304031), (68276, 300433), (85838, 238966), (86866, 236138), (93548, 219271), (103828, 197561), (112892, 181699), (118069, 173732), (119483, 171676)]