21490252080

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{8140247}}^1$

素因数の和:8140274

約数の個数: 80

約数和(自身を含む): 72676134144

約数和(自身を除く): 51185882064

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 55, 60, 66, 80, 88, 110, 120, 132, 165, 176, 220, 240, 264, 330, 440, 528, 660, 880, 1320, 2640, 8140247, 16280494, 24420741, 32560988, 40701235, 48841482, 65121976, 81402470, 89542717, 97682964, 122103705, 130243952, 162804940, 179085434, 195365928, 244207410, 268628151, 325609880, 358170868, 390731856, 447713585, 488414820, 537256302, 651219760, 716341736, 895427170, 976829640, 1074512604, 1343140755, 1432683472, 1790854340, 1953659280, 2149025208, 2686281510, 3581708680, 4298050416, 5372563020, 7163417360, 10745126040, 21490252080]

約数ペア:

[(1, 21490252080), (2, 10745126040), (3, 7163417360), (4, 5372563020), (5, 4298050416), (6, 3581708680), (8, 2686281510), (10, 2149025208), (11, 1953659280), (12, 1790854340), (15, 1432683472), (16, 1343140755), (20, 1074512604), (22, 976829640), (24, 895427170), (30, 716341736), (33, 651219760), (40, 537256302), (44, 488414820), (48, 447713585), (55, 390731856), (60, 358170868), (66, 325609880), (80, 268628151), (88, 244207410), (110, 195365928), (120, 179085434), (132, 162804940), (165, 130243952), (176, 122103705), (220, 97682964), (240, 89542717), (264, 81402470), (330, 65121976), (440, 48841482), (528, 40701235), (660, 32560988), (880, 24420741), (1320, 16280494), (2640, 8140247)]