209520402

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{2801}}^1$

素因数の和:2963

約数の個数: 64

約数和(自身を含む): 519692544

約数和(自身を除く): 310172142

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 78, 91, 137, 182, 273, 274, 411, 546, 822, 959, 1781, 1918, 2801, 2877, 3562, 5343, 5602, 5754, 8403, 10686, 12467, 16806, 19607, 24934, 36413, 37401, 39214, 58821, 72826, 74802, 109239, 117642, 218478, 254891, 383737, 509782, 764673, 767474, 1151211, 1529346, 2302422, 2686159, 4988581, 5372318, 8058477, 9977162, 14965743, 16116954, 29931486, 34920067, 69840134, 104760201, 209520402]

約数ペア:

[(1, 209520402), (2, 104760201), (3, 69840134), (6, 34920067), (7, 29931486), (13, 16116954), (14, 14965743), (21, 9977162), (26, 8058477), (39, 5372318), (42, 4988581), (78, 2686159), (91, 2302422), (137, 1529346), (182, 1151211), (273, 767474), (274, 764673), (411, 509782), (546, 383737), (822, 254891), (959, 218478), (1781, 117642), (1918, 109239), (2801, 74802), (2877, 72826), (3562, 58821), (5343, 39214), (5602, 37401), (5754, 36413), (8403, 24934), (10686, 19607), (12467, 16806)]