257841360

素因数分解:

$2^4\times 3^3\times 5^1\times 7^1\times {\mathrm{17053}}^1$

素因数の和:17082

約数の個数: 160

約数和(自身を含む): 1015054080

約数和(自身を除く): 757212720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 84, 90, 105, 108, 112, 120, 126, 135, 140, 144, 168, 180, 189, 210, 216, 240, 252, 270, 280, 315, 336, 360, 378, 420, 432, 504, 540, 560, 630, 720, 756, 840, 945, 1008, 1080, 1260, 1512, 1680, 1890, 2160, 2520, 3024, 3780, 5040, 7560, 15120, 17053, 34106, 51159, 68212, 85265, 102318, 119371, 136424, 153477, 170530, 204636, 238742, 255795, 272848, 306954, 341060, 358113, 409272, 460431, 477484, 511590, 596855, 613908, 682120, 716226, 767385, 818544, 920862, 954968, 1023180, 1074339, 1193710, 1227816, 1364240, 1432452, 1534770, 1790565, 1841724, 1909936, 2046360, 2148678, 2302155, 2387420, 2455632, 2864904, 3069540, 3223017, 3581130, 3683448, 4092720, 4297356, 4604310, 4774840, 5371695, 5729808, 6139080, 6446034, 7162260, 7366896, 8594712, 9208620, 9549680, 10743390, 12278160, 12892068, 14324520, 16115085, 17189424, 18417240, 21486780, 25784136, 28649040, 32230170, 36834480, 42973560, 51568272, 64460340, 85947120, 128920680, 257841360]

約数ペア:

[(1, 257841360), (2, 128920680), (3, 85947120), (4, 64460340), (5, 51568272), (6, 42973560), (7, 36834480), (8, 32230170), (9, 28649040), (10, 25784136), (12, 21486780), (14, 18417240), (15, 17189424), (16, 16115085), (18, 14324520), (20, 12892068), (21, 12278160), (24, 10743390), (27, 9549680), (28, 9208620), (30, 8594712), (35, 7366896), (36, 7162260), (40, 6446034), (42, 6139080), (45, 5729808), (48, 5371695), (54, 4774840), (56, 4604310), (60, 4297356), (63, 4092720), (70, 3683448), (72, 3581130), (80, 3223017), (84, 3069540), (90, 2864904), (105, 2455632), (108, 2387420), (112, 2302155), (120, 2148678), (126, 2046360), (135, 1909936), (140, 1841724), (144, 1790565), (168, 1534770), (180, 1432452), (189, 1364240), (210, 1227816), (216, 1193710), (240, 1074339), (252, 1023180), (270, 954968), (280, 920862), (315, 818544), (336, 767385), (360, 716226), (378, 682120), (420, 613908), (432, 596855), (504, 511590), (540, 477484), (560, 460431), (630, 409272), (720, 358113), (756, 341060), (840, 306954), (945, 272848), (1008, 255795), (1080, 238742), (1260, 204636), (1512, 170530), (1680, 153477), (1890, 136424), (2160, 119371), (2520, 102318), (3024, 85265), (3780, 68212), (5040, 51159), (7560, 34106), (15120, 17053)]