256410396

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{643}}^1$

素因数の和:736

約数の個数: 144

約数和(自身を含む): 759507840

約数和(自身を除く): 503097444

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 19, 22, 33, 36, 38, 44, 53, 57, 66, 76, 99, 106, 114, 132, 159, 171, 198, 209, 212, 228, 318, 342, 396, 418, 477, 583, 627, 636, 643, 684, 836, 954, 1007, 1166, 1254, 1286, 1749, 1881, 1908, 1929, 2014, 2332, 2508, 2572, 3021, 3498, 3762, 3858, 4028, 5247, 5787, 6042, 6996, 7073, 7524, 7716, 9063, 10494, 11077, 11574, 12084, 12217, 14146, 18126, 20988, 21219, 22154, 23148, 24434, 28292, 33231, 34079, 36252, 36651, 42438, 44308, 48868, 63657, 66462, 68158, 73302, 84876, 99693, 102237, 109953, 127314, 132924, 134387, 136316, 146604, 199386, 204474, 219906, 254628, 268774, 306711, 374869, 398772, 403161, 408948, 439812, 537548, 613422, 647501, 749738, 806322, 1124607, 1209483, 1226844, 1295002, 1499476, 1612644, 1942503, 2249214, 2418966, 2590004, 3373821, 3885006, 4498428, 4837932, 5827509, 6747642, 7122511, 7770012, 11655018, 13495284, 14245022, 21367533, 23310036, 28490044, 42735066, 64102599, 85470132, 128205198, 256410396]

約数ペア:

[(1, 256410396), (2, 128205198), (3, 85470132), (4, 64102599), (6, 42735066), (9, 28490044), (11, 23310036), (12, 21367533), (18, 14245022), (19, 13495284), (22, 11655018), (33, 7770012), (36, 7122511), (38, 6747642), (44, 5827509), (53, 4837932), (57, 4498428), (66, 3885006), (76, 3373821), (99, 2590004), (106, 2418966), (114, 2249214), (132, 1942503), (159, 1612644), (171, 1499476), (198, 1295002), (209, 1226844), (212, 1209483), (228, 1124607), (318, 806322), (342, 749738), (396, 647501), (418, 613422), (477, 537548), (583, 439812), (627, 408948), (636, 403161), (643, 398772), (684, 374869), (836, 306711), (954, 268774), (1007, 254628), (1166, 219906), (1254, 204474), (1286, 199386), (1749, 146604), (1881, 136316), (1908, 134387), (1929, 132924), (2014, 127314), (2332, 109953), (2508, 102237), (2572, 99693), (3021, 84876), (3498, 73302), (3762, 68158), (3858, 66462), (4028, 63657), (5247, 48868), (5787, 44308), (6042, 42438), (6996, 36651), (7073, 36252), (7524, 34079), (7716, 33231), (9063, 28292), (10494, 24434), (11077, 23148), (11574, 22154), (12084, 21219), (12217, 20988), (14146, 18126)]