249999568

素因数分解:

$2^4\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1291}}^1$

素因数の和:1345

約数の個数: 120

約数和(自身を含む): 639229920

約数和(自身を除く): 389230352

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 19, 26, 28, 38, 49, 52, 56, 76, 91, 98, 104, 112, 133, 152, 182, 196, 208, 247, 266, 304, 364, 392, 494, 532, 637, 728, 784, 931, 988, 1064, 1274, 1291, 1456, 1729, 1862, 1976, 2128, 2548, 2582, 3458, 3724, 3952, 5096, 5164, 6916, 7448, 9037, 10192, 10328, 12103, 13832, 14896, 16783, 18074, 20656, 24206, 24529, 27664, 33566, 36148, 48412, 49058, 63259, 67132, 72296, 96824, 98116, 117481, 126518, 134264, 144592, 171703, 193648, 196232, 234962, 253036, 268528, 318877, 343406, 392464, 469924, 506072, 637754, 686812, 822367, 939848, 1012144, 1201921, 1275508, 1373624, 1644734, 1879696, 2232139, 2403842, 2551016, 2747248, 3289468, 4464278, 4807684, 5102032, 6578936, 8928556, 9615368, 13157872, 15624973, 17857112, 19230736, 31249946, 35714224, 62499892, 124999784, 249999568]

約数ペア:

[(1, 249999568), (2, 124999784), (4, 62499892), (7, 35714224), (8, 31249946), (13, 19230736), (14, 17857112), (16, 15624973), (19, 13157872), (26, 9615368), (28, 8928556), (38, 6578936), (49, 5102032), (52, 4807684), (56, 4464278), (76, 3289468), (91, 2747248), (98, 2551016), (104, 2403842), (112, 2232139), (133, 1879696), (152, 1644734), (182, 1373624), (196, 1275508), (208, 1201921), (247, 1012144), (266, 939848), (304, 822367), (364, 686812), (392, 637754), (494, 506072), (532, 469924), (637, 392464), (728, 343406), (784, 318877), (931, 268528), (988, 253036), (1064, 234962), (1274, 196232), (1291, 193648), (1456, 171703), (1729, 144592), (1862, 134264), (1976, 126518), (2128, 117481), (2548, 98116), (2582, 96824), (3458, 72296), (3724, 67132), (3952, 63259), (5096, 49058), (5164, 48412), (6916, 36148), (7448, 33566), (9037, 27664), (10192, 24529), (10328, 24206), (12103, 20656), (13832, 18074), (14896, 16783)]