1287654720

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{121937}}^1$

素因数の和:121968

約数の個数: 112

約数和(自身を含む): 4460004288

約数和(自身を除く): 3172349568

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 32, 33, 40, 44, 48, 55, 60, 64, 66, 80, 88, 96, 110, 120, 132, 160, 165, 176, 192, 220, 240, 264, 320, 330, 352, 440, 480, 528, 660, 704, 880, 960, 1056, 1320, 1760, 2112, 2640, 3520, 5280, 10560, 121937, 243874, 365811, 487748, 609685, 731622, 975496, 1219370, 1341307, 1463244, 1829055, 1950992, 2438740, 2682614, 2926488, 3658110, 3901984, 4023921, 4877480, 5365228, 5852976, 6706535, 7316220, 7803968, 8047842, 9754960, 10730456, 11705952, 13413070, 14632440, 16095684, 19509920, 20119605, 21460912, 23411904, 26826140, 29264880, 32191368, 39019840, 40239210, 42921824, 53652280, 58529760, 64382736, 80478420, 85843648, 107304560, 117059520, 128765472, 160956840, 214609120, 257530944, 321913680, 429218240, 643827360, 1287654720]

約数ペア:

[(1, 1287654720), (2, 643827360), (3, 429218240), (4, 321913680), (5, 257530944), (6, 214609120), (8, 160956840), (10, 128765472), (11, 117059520), (12, 107304560), (15, 85843648), (16, 80478420), (20, 64382736), (22, 58529760), (24, 53652280), (30, 42921824), (32, 40239210), (33, 39019840), (40, 32191368), (44, 29264880), (48, 26826140), (55, 23411904), (60, 21460912), (64, 20119605), (66, 19509920), (80, 16095684), (88, 14632440), (96, 13413070), (110, 11705952), (120, 10730456), (132, 9754960), (160, 8047842), (165, 7803968), (176, 7316220), (192, 6706535), (220, 5852976), (240, 5365228), (264, 4877480), (320, 4023921), (330, 3901984), (352, 3658110), (440, 2926488), (480, 2682614), (528, 2438740), (660, 1950992), (704, 1829055), (880, 1463244), (960, 1341307), (1056, 1219370), (1320, 975496), (1760, 731622), (2112, 609685), (2640, 487748), (3520, 365811), (5280, 243874), (10560, 121937)]