77531000

素因数分解:

$2^3\times 5^3\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1$

素因数の和:154

約数の個数: 128

約数和(自身を含む): 194987520

約数和(自身を除く): 117456520

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 31, 40, 41, 50, 61, 62, 82, 100, 122, 124, 125, 155, 164, 200, 205, 244, 248, 250, 305, 310, 328, 410, 488, 500, 610, 620, 775, 820, 1000, 1025, 1220, 1240, 1271, 1525, 1550, 1640, 1891, 2050, 2440, 2501, 2542, 3050, 3100, 3782, 3875, 4100, 5002, 5084, 5125, 6100, 6200, 6355, 7564, 7625, 7750, 8200, 9455, 10004, 10168, 10250, 12200, 12505, 12710, 15128, 15250, 15500, 18910, 20008, 20500, 25010, 25420, 30500, 31000, 31775, 37820, 41000, 47275, 50020, 50840, 61000, 62525, 63550, 75640, 77531, 94550, 100040, 125050, 127100, 155062, 158875, 189100, 236375, 250100, 254200, 310124, 312625, 317750, 378200, 387655, 472750, 500200, 620248, 625250, 635500, 775310, 945500, 1250500, 1271000, 1550620, 1891000, 1938275, 2501000, 3101240, 3876550, 7753100, 9691375, 15506200, 19382750, 38765500, 77531000]

約数ペア:

[(1, 77531000), (2, 38765500), (4, 19382750), (5, 15506200), (8, 9691375), (10, 7753100), (20, 3876550), (25, 3101240), (31, 2501000), (40, 1938275), (41, 1891000), (50, 1550620), (61, 1271000), (62, 1250500), (82, 945500), (100, 775310), (122, 635500), (124, 625250), (125, 620248), (155, 500200), (164, 472750), (200, 387655), (205, 378200), (244, 317750), (248, 312625), (250, 310124), (305, 254200), (310, 250100), (328, 236375), (410, 189100), (488, 158875), (500, 155062), (610, 127100), (620, 125050), (775, 100040), (820, 94550), (1000, 77531), (1025, 75640), (1220, 63550), (1240, 62525), (1271, 61000), (1525, 50840), (1550, 50020), (1640, 47275), (1891, 41000), (2050, 37820), (2440, 31775), (2501, 31000), (2542, 30500), (3050, 25420), (3100, 25010), (3782, 20500), (3875, 20008), (4100, 18910), (5002, 15500), (5084, 15250), (5125, 15128), (6100, 12710), (6200, 12505), (6355, 12200), (7564, 10250), (7625, 10168), (7750, 10004), (8200, 9455)]