257321376

素因数分解:

$2^5\times 3^2\times {\mathrm{13}}^1\times {\mathrm{68729}}^1$

素因数の和:68758

約数の個数: 72

約数和(自身を含む): 788058180

約数和(自身を除く): 530736804

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 32, 36, 39, 48, 52, 72, 78, 96, 104, 117, 144, 156, 208, 234, 288, 312, 416, 468, 624, 936, 1248, 1872, 3744, 68729, 137458, 206187, 274916, 412374, 549832, 618561, 824748, 893477, 1099664, 1237122, 1649496, 1786954, 2199328, 2474244, 2680431, 3298992, 3573908, 4948488, 5360862, 6597984, 7147816, 8041293, 9896976, 10721724, 14295632, 16082586, 19793952, 21443448, 28591264, 32165172, 42886896, 64330344, 85773792, 128660688, 257321376]

約数ペア:

[(1, 257321376), (2, 128660688), (3, 85773792), (4, 64330344), (6, 42886896), (8, 32165172), (9, 28591264), (12, 21443448), (13, 19793952), (16, 16082586), (18, 14295632), (24, 10721724), (26, 9896976), (32, 8041293), (36, 7147816), (39, 6597984), (48, 5360862), (52, 4948488), (72, 3573908), (78, 3298992), (96, 2680431), (104, 2474244), (117, 2199328), (144, 1786954), (156, 1649496), (208, 1237122), (234, 1099664), (288, 893477), (312, 824748), (416, 618561), (468, 549832), (624, 412374), (936, 274916), (1248, 206187), (1872, 137458), (3744, 68729)]