1331000000

素因数分解:

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

素因数の和:75

約数の個数: 196

約数和(自身を含む): 3631359768

約数和(自身を除く): 2300359768

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 32, 40, 44, 50, 55, 64, 80, 88, 100, 110, 121, 125, 160, 176, 200, 220, 242, 250, 275, 320, 352, 400, 440, 484, 500, 550, 605, 625, 704, 800, 880, 968, 1000, 1100, 1210, 1250, 1331, 1375, 1600, 1760, 1936, 2000, 2200, 2420, 2500, 2662, 2750, 3025, 3125, 3520, 3872, 4000, 4400, 4840, 5000, 5324, 5500, 6050, 6250, 6655, 6875, 7744, 8000, 8800, 9680, 10000, 10648, 11000, 12100, 12500, 13310, 13750, 15125, 15625, 17600, 19360, 20000, 21296, 22000, 24200, 25000, 26620, 27500, 30250, 31250, 33275, 34375, 38720, 40000, 42592, 44000, 48400, 50000, 53240, 55000, 60500, 62500, 66550, 68750, 75625, 85184, 88000, 96800, 100000, 106480, 110000, 121000, 125000, 133100, 137500, 151250, 166375, 171875, 193600, 200000, 212960, 220000, 242000, 250000, 266200, 275000, 302500, 332750, 343750, 378125, 425920, 440000, 484000, 500000, 532400, 550000, 605000, 665500, 687500, 756250, 831875, 968000, 1000000, 1064800, 1100000, 1210000, 1331000, 1375000, 1512500, 1663750, 1890625, 2129600, 2200000, 2420000, 2662000, 2750000, 3025000, 3327500, 3781250, 4159375, 4840000, 5324000, 5500000, 6050000, 6655000, 7562500, 8318750, 10648000, 11000000, 12100000, 13310000, 15125000, 16637500, 20796875, 24200000, 26620000, 30250000, 33275000, 41593750, 53240000, 60500000, 66550000, 83187500, 121000000, 133100000, 166375000, 266200000, 332750000, 665500000, 1331000000]

約数ペア:

[(1, 1331000000), (2, 665500000), (4, 332750000), (5, 266200000), (8, 166375000), (10, 133100000), (11, 121000000), (16, 83187500), (20, 66550000), (22, 60500000), (25, 53240000), (32, 41593750), (40, 33275000), (44, 30250000), (50, 26620000), (55, 24200000), (64, 20796875), (80, 16637500), (88, 15125000), (100, 13310000), (110, 12100000), (121, 11000000), (125, 10648000), (160, 8318750), (176, 7562500), (200, 6655000), (220, 6050000), (242, 5500000), (250, 5324000), (275, 4840000), (320, 4159375), (352, 3781250), (400, 3327500), (440, 3025000), (484, 2750000), (500, 2662000), (550, 2420000), (605, 2200000), (625, 2129600), (704, 1890625), (800, 1663750), (880, 1512500), (968, 1375000), (1000, 1331000), (1100, 1210000), (1210, 1100000), (1250, 1064800), (1331, 1000000), (1375, 968000), (1600, 831875), (1760, 756250), (1936, 687500), (2000, 665500), (2200, 605000), (2420, 550000), (2500, 532400), (2662, 500000), (2750, 484000), (3025, 440000), (3125, 425920), (3520, 378125), (3872, 343750), (4000, 332750), (4400, 302500), (4840, 275000), (5000, 266200), (5324, 250000), (5500, 242000), (6050, 220000), (6250, 212960), (6655, 200000), (6875, 193600), (7744, 171875), (8000, 166375), (8800, 151250), (9680, 137500), (10000, 133100), (10648, 125000), (11000, 121000), (12100, 110000), (12500, 106480), (13310, 100000), (13750, 96800), (15125, 88000), (15625, 85184), (17600, 75625), (19360, 68750), (20000, 66550), (21296, 62500), (22000, 60500), (24200, 55000), (25000, 53240), (26620, 50000), (27500, 48400), (30250, 44000), (31250, 42592), (33275, 40000), (34375, 38720)]