261291264

素因数分解:

$2^8\times 3^1\times {\mathrm{13}}^1\times {\mathrm{26171}}^1$

素因数の和:26203

約数の個数: 72

約数和(自身を含む): 748937952

約数和(自身を除く): 487646688

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 48, 52, 64, 78, 96, 104, 128, 156, 192, 208, 256, 312, 384, 416, 624, 768, 832, 1248, 1664, 2496, 3328, 4992, 9984, 26171, 52342, 78513, 104684, 157026, 209368, 314052, 340223, 418736, 628104, 680446, 837472, 1020669, 1256208, 1360892, 1674944, 2041338, 2512416, 2721784, 3349888, 4082676, 5024832, 5443568, 6699776, 8165352, 10049664, 10887136, 16330704, 20099328, 21774272, 32661408, 43548544, 65322816, 87097088, 130645632, 261291264]

約数ペア:

[(1, 261291264), (2, 130645632), (3, 87097088), (4, 65322816), (6, 43548544), (8, 32661408), (12, 21774272), (13, 20099328), (16, 16330704), (24, 10887136), (26, 10049664), (32, 8165352), (39, 6699776), (48, 5443568), (52, 5024832), (64, 4082676), (78, 3349888), (96, 2721784), (104, 2512416), (128, 2041338), (156, 1674944), (192, 1360892), (208, 1256208), (256, 1020669), (312, 837472), (384, 680446), (416, 628104), (624, 418736), (768, 340223), (832, 314052), (1248, 209368), (1664, 157026), (2496, 104684), (3328, 78513), (4992, 52342), (9984, 26171)]