291254992

素因数分解:

$2^4\times 7^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{479}}^1$

素因数の和:644

約数の個数: 80

約数和(自身を含む): 664243200

約数和(自身を除く): 372988208

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 61, 89, 112, 122, 178, 244, 356, 427, 479, 488, 623, 712, 854, 958, 976, 1246, 1424, 1708, 1916, 2492, 3353, 3416, 3832, 4984, 5429, 6706, 6832, 7664, 9968, 10858, 13412, 21716, 26824, 29219, 38003, 42631, 43432, 53648, 58438, 76006, 85262, 86864, 116876, 152012, 170524, 204533, 233752, 298417, 304024, 341048, 409066, 467504, 596834, 608048, 682096, 818132, 1193668, 1636264, 2387336, 2600491, 3272528, 4774672, 5200982, 10401964, 18203437, 20803928, 36406874, 41607856, 72813748, 145627496, 291254992]

約数ペア:

[(1, 291254992), (2, 145627496), (4, 72813748), (7, 41607856), (8, 36406874), (14, 20803928), (16, 18203437), (28, 10401964), (56, 5200982), (61, 4774672), (89, 3272528), (112, 2600491), (122, 2387336), (178, 1636264), (244, 1193668), (356, 818132), (427, 682096), (479, 608048), (488, 596834), (623, 467504), (712, 409066), (854, 341048), (958, 304024), (976, 298417), (1246, 233752), (1424, 204533), (1708, 170524), (1916, 152012), (2492, 116876), (3353, 86864), (3416, 85262), (3832, 76006), (4984, 58438), (5429, 53648), (6706, 43432), (6832, 42631), (7664, 38003), (9968, 29219), (10858, 26824), (13412, 21716)]