2125000000

素因数分解:

$2^6\times 5^9\times {\mathrm{17}}^1$

素因数の和:74

約数の個数: 140

約数和(自身を含む): 5581054116

約数和(自身を除く): 3456054116

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 32, 34, 40, 50, 64, 68, 80, 85, 100, 125, 136, 160, 170, 200, 250, 272, 320, 340, 400, 425, 500, 544, 625, 680, 800, 850, 1000, 1088, 1250, 1360, 1600, 1700, 2000, 2125, 2500, 2720, 3125, 3400, 4000, 4250, 5000, 5440, 6250, 6800, 8000, 8500, 10000, 10625, 12500, 13600, 15625, 17000, 20000, 21250, 25000, 27200, 31250, 34000, 40000, 42500, 50000, 53125, 62500, 68000, 78125, 85000, 100000, 106250, 125000, 136000, 156250, 170000, 200000, 212500, 250000, 265625, 312500, 340000, 390625, 425000, 500000, 531250, 625000, 680000, 781250, 850000, 1000000, 1062500, 1250000, 1328125, 1562500, 1700000, 1953125, 2125000, 2500000, 2656250, 3125000, 3400000, 3906250, 4250000, 5000000, 5312500, 6250000, 6640625, 7812500, 8500000, 10625000, 12500000, 13281250, 15625000, 17000000, 21250000, 25000000, 26562500, 31250000, 33203125, 42500000, 53125000, 62500000, 66406250, 85000000, 106250000, 125000000, 132812500, 212500000, 265625000, 425000000, 531250000, 1062500000, 2125000000]

約数ペア:

[(1, 2125000000), (2, 1062500000), (4, 531250000), (5, 425000000), (8, 265625000), (10, 212500000), (16, 132812500), (17, 125000000), (20, 106250000), (25, 85000000), (32, 66406250), (34, 62500000), (40, 53125000), (50, 42500000), (64, 33203125), (68, 31250000), (80, 26562500), (85, 25000000), (100, 21250000), (125, 17000000), (136, 15625000), (160, 13281250), (170, 12500000), (200, 10625000), (250, 8500000), (272, 7812500), (320, 6640625), (340, 6250000), (400, 5312500), (425, 5000000), (500, 4250000), (544, 3906250), (625, 3400000), (680, 3125000), (800, 2656250), (850, 2500000), (1000, 2125000), (1088, 1953125), (1250, 1700000), (1360, 1562500), (1600, 1328125), (1700, 1250000), (2000, 1062500), (2125, 1000000), (2500, 850000), (2720, 781250), (3125, 680000), (3400, 625000), (4000, 531250), (4250, 500000), (5000, 425000), (5440, 390625), (6250, 340000), (6800, 312500), (8000, 265625), (8500, 250000), (10000, 212500), (10625, 200000), (12500, 170000), (13600, 156250), (15625, 136000), (17000, 125000), (20000, 106250), (21250, 100000), (25000, 85000), (27200, 78125), (31250, 68000), (34000, 62500), (40000, 53125), (42500, 50000)]