1271000

素因数分解:

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

素因数の和:93

約数の個数: 64

約数和(自身を含む): 3144960

約数和(自身を除く): 1873960

約数列:

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

約数ペア:

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