1280005792

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{31721}}^1$

素因数の和:31841

約数の個数: 48

約数和(自身を含む): 2741922792

約数和(自身を除く): 1461917000

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 97, 104, 194, 208, 388, 416, 776, 1261, 1552, 2522, 3104, 5044, 10088, 20176, 31721, 40352, 63442, 126884, 253768, 412373, 507536, 824746, 1015072, 1649492, 3076937, 3298984, 6153874, 6597968, 12307748, 13195936, 24615496, 40000181, 49230992, 80000362, 98461984, 160000724, 320001448, 640002896, 1280005792]

約数ペア:

[(1, 1280005792), (2, 640002896), (4, 320001448), (8, 160000724), (13, 98461984), (16, 80000362), (26, 49230992), (32, 40000181), (52, 24615496), (97, 13195936), (104, 12307748), (194, 6597968), (208, 6153874), (388, 3298984), (416, 3076937), (776, 1649492), (1261, 1015072), (1552, 824746), (2522, 507536), (3104, 412373), (5044, 253768), (10088, 126884), (20176, 63442), (31721, 40352)]