2542000

素因数分解:

$2^4\times 5^3\times {\mathrm{31}}^1\times {\mathrm{41}}^1$

素因数の和:95

約数の個数: 80

約数和(自身を含む): 6499584

約数和(自身を除く): 3957584

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 40, 41, 50, 62, 80, 82, 100, 124, 125, 155, 164, 200, 205, 248, 250, 310, 328, 400, 410, 496, 500, 620, 656, 775, 820, 1000, 1025, 1240, 1271, 1550, 1640, 2000, 2050, 2480, 2542, 3100, 3280, 3875, 4100, 5084, 5125, 6200, 6355, 7750, 8200, 10168, 10250, 12400, 12710, 15500, 16400, 20336, 20500, 25420, 31000, 31775, 41000, 50840, 62000, 63550, 82000, 101680, 127100, 158875, 254200, 317750, 508400, 635500, 1271000, 2542000]

約数ペア:

[(1, 2542000), (2, 1271000), (4, 635500), (5, 508400), (8, 317750), (10, 254200), (16, 158875), (20, 127100), (25, 101680), (31, 82000), (40, 63550), (41, 62000), (50, 50840), (62, 41000), (80, 31775), (82, 31000), (100, 25420), (124, 20500), (125, 20336), (155, 16400), (164, 15500), (200, 12710), (205, 12400), (248, 10250), (250, 10168), (310, 8200), (328, 7750), (400, 6355), (410, 6200), (496, 5125), (500, 5084), (620, 4100), (656, 3875), (775, 3280), (820, 3100), (1000, 2542), (1025, 2480), (1240, 2050), (1271, 2000), (1550, 1640)]