207978680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3361}}^1$

素因数の和:3409

約数の個数: 128

約数和(自身を含む): 610001280

約数和(自身を除く): 402022600

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 17, 20, 26, 28, 34, 35, 40, 52, 56, 65, 68, 70, 85, 91, 104, 119, 130, 136, 140, 170, 182, 221, 238, 260, 280, 340, 364, 442, 455, 476, 520, 595, 680, 728, 884, 910, 952, 1105, 1190, 1547, 1768, 1820, 2210, 2380, 3094, 3361, 3640, 4420, 4760, 6188, 6722, 7735, 8840, 12376, 13444, 15470, 16805, 23527, 26888, 30940, 33610, 43693, 47054, 57137, 61880, 67220, 87386, 94108, 114274, 117635, 134440, 174772, 188216, 218465, 228548, 235270, 285685, 305851, 349544, 399959, 436930, 457096, 470540, 571370, 611702, 742781, 799918, 873860, 941080, 1142740, 1223404, 1485562, 1529255, 1599836, 1747720, 1999795, 2285480, 2446808, 2971124, 3058510, 3199672, 3713905, 3999590, 5199467, 5942248, 6117020, 7427810, 7999180, 10398934, 12234040, 14855620, 15998360, 20797868, 25997335, 29711240, 41595736, 51994670, 103989340, 207978680]

約数ペア:

[(1, 207978680), (2, 103989340), (4, 51994670), (5, 41595736), (7, 29711240), (8, 25997335), (10, 20797868), (13, 15998360), (14, 14855620), (17, 12234040), (20, 10398934), (26, 7999180), (28, 7427810), (34, 6117020), (35, 5942248), (40, 5199467), (52, 3999590), (56, 3713905), (65, 3199672), (68, 3058510), (70, 2971124), (85, 2446808), (91, 2285480), (104, 1999795), (119, 1747720), (130, 1599836), (136, 1529255), (140, 1485562), (170, 1223404), (182, 1142740), (221, 941080), (238, 873860), (260, 799918), (280, 742781), (340, 611702), (364, 571370), (442, 470540), (455, 457096), (476, 436930), (520, 399959), (595, 349544), (680, 305851), (728, 285685), (884, 235270), (910, 228548), (952, 218465), (1105, 188216), (1190, 174772), (1547, 134440), (1768, 117635), (1820, 114274), (2210, 94108), (2380, 87386), (3094, 67220), (3361, 61880), (3640, 57137), (4420, 47054), (4760, 43693), (6188, 33610), (6722, 30940), (7735, 26888), (8840, 23527), (12376, 16805), (13444, 15470)]