221581724

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{199}}^1$

素因数の和:272

約数の個数: 144

約数和(自身を含む): 536256000

約数和(自身を除く): 314674276

約数列:

[1, 2, 4, 7, 13, 14, 19, 23, 26, 28, 38, 46, 49, 52, 76, 91, 92, 98, 133, 161, 182, 196, 199, 247, 266, 299, 322, 364, 398, 437, 494, 532, 598, 637, 644, 796, 874, 931, 988, 1127, 1196, 1274, 1393, 1729, 1748, 1862, 2093, 2254, 2548, 2587, 2786, 3059, 3458, 3724, 3781, 4186, 4508, 4577, 5174, 5572, 5681, 6118, 6916, 7562, 8372, 9154, 9751, 10348, 11362, 12103, 12236, 14651, 15124, 18109, 18308, 19502, 21413, 22724, 24206, 26467, 29302, 32039, 36218, 39004, 39767, 42826, 48412, 49153, 52934, 58604, 59501, 64078, 72436, 79534, 85652, 86963, 98306, 105868, 119002, 126763, 128156, 159068, 173926, 185269, 196612, 224273, 238004, 253526, 278369, 344071, 347852, 370538, 416507, 448546, 507052, 556738, 608741, 688142, 741076, 833014, 897092, 1113476, 1130519, 1217482, 1376284, 1666028, 2261038, 2408497, 2434964, 2915549, 4261187, 4522076, 4816994, 5831098, 7913633, 8522374, 9633988, 11662196, 15827266, 17044748, 31654532, 55395431, 110790862, 221581724]

約数ペア:

[(1, 221581724), (2, 110790862), (4, 55395431), (7, 31654532), (13, 17044748), (14, 15827266), (19, 11662196), (23, 9633988), (26, 8522374), (28, 7913633), (38, 5831098), (46, 4816994), (49, 4522076), (52, 4261187), (76, 2915549), (91, 2434964), (92, 2408497), (98, 2261038), (133, 1666028), (161, 1376284), (182, 1217482), (196, 1130519), (199, 1113476), (247, 897092), (266, 833014), (299, 741076), (322, 688142), (364, 608741), (398, 556738), (437, 507052), (494, 448546), (532, 416507), (598, 370538), (637, 347852), (644, 344071), (796, 278369), (874, 253526), (931, 238004), (988, 224273), (1127, 196612), (1196, 185269), (1274, 173926), (1393, 159068), (1729, 128156), (1748, 126763), (1862, 119002), (2093, 105868), (2254, 98306), (2548, 86963), (2587, 85652), (2786, 79534), (3059, 72436), (3458, 64078), (3724, 59501), (3781, 58604), (4186, 52934), (4508, 49153), (4577, 48412), (5174, 42826), (5572, 39767), (5681, 39004), (6118, 36218), (6916, 32039), (7562, 29302), (8372, 26467), (9154, 24206), (9751, 22724), (10348, 21413), (11362, 19502), (12103, 18308), (12236, 18109), (14651, 15124)]