221847535

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1$

素因数の和:137

約数の個数: 128

約数和(自身を含む): 383201280

約数和(自身を除く): 161353745

約数列:

[1, 5, 7, 13, 17, 23, 29, 35, 43, 65, 85, 91, 115, 119, 145, 161, 203, 215, 221, 299, 301, 377, 391, 455, 493, 559, 595, 667, 731, 805, 989, 1015, 1105, 1247, 1495, 1505, 1547, 1885, 1955, 2093, 2465, 2639, 2737, 2795, 3335, 3451, 3655, 3913, 4669, 4945, 5083, 5117, 6235, 6409, 6923, 7735, 8671, 8729, 9503, 10465, 11339, 12857, 13195, 13685, 16211, 16813, 17255, 19565, 21199, 23345, 25415, 25585, 28681, 32045, 34615, 35581, 43355, 43645, 44863, 47515, 56695, 60697, 64285, 66521, 79373, 81055, 84065, 89999, 105995, 113477, 117691, 143405, 147407, 148393, 177905, 200767, 218569, 224315, 275587, 303485, 332605, 372853, 396865, 449995, 487577, 567385, 588455, 737035, 741965, 1003835, 1031849, 1092845, 1377935, 1529983, 1864265, 1929109, 2437885, 2609971, 3413039, 5159245, 6338501, 7649915, 9645545, 13049855, 17065195, 31692505, 44369507, 221847535]

約数ペア:

[(1, 221847535), (5, 44369507), (7, 31692505), (13, 17065195), (17, 13049855), (23, 9645545), (29, 7649915), (35, 6338501), (43, 5159245), (65, 3413039), (85, 2609971), (91, 2437885), (115, 1929109), (119, 1864265), (145, 1529983), (161, 1377935), (203, 1092845), (215, 1031849), (221, 1003835), (299, 741965), (301, 737035), (377, 588455), (391, 567385), (455, 487577), (493, 449995), (559, 396865), (595, 372853), (667, 332605), (731, 303485), (805, 275587), (989, 224315), (1015, 218569), (1105, 200767), (1247, 177905), (1495, 148393), (1505, 147407), (1547, 143405), (1885, 117691), (1955, 113477), (2093, 105995), (2465, 89999), (2639, 84065), (2737, 81055), (2795, 79373), (3335, 66521), (3451, 64285), (3655, 60697), (3913, 56695), (4669, 47515), (4945, 44863), (5083, 43645), (5117, 43355), (6235, 35581), (6409, 34615), (6923, 32045), (7735, 28681), (8671, 25585), (8729, 25415), (9503, 23345), (10465, 21199), (11339, 19565), (12857, 17255), (13195, 16813), (13685, 16211)]