200080000

素因数分解:

$2^7\times 5^4\times {\mathrm{41}}^1\times {\mathrm{61}}^1$

素因数の和:136

約数の個数: 160

約数和(自身を含む): 518599620

約数和(自身を除く): 318519620

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 41, 50, 61, 64, 80, 82, 100, 122, 125, 128, 160, 164, 200, 205, 244, 250, 305, 320, 328, 400, 410, 488, 500, 610, 625, 640, 656, 800, 820, 976, 1000, 1025, 1220, 1250, 1312, 1525, 1600, 1640, 1952, 2000, 2050, 2440, 2500, 2501, 2624, 3050, 3200, 3280, 3904, 4000, 4100, 4880, 5000, 5002, 5125, 5248, 6100, 6560, 7625, 7808, 8000, 8200, 9760, 10000, 10004, 10250, 12200, 12505, 13120, 15250, 16000, 16400, 19520, 20000, 20008, 20500, 24400, 25010, 25625, 26240, 30500, 32800, 38125, 39040, 40000, 40016, 41000, 48800, 50020, 51250, 61000, 62525, 65600, 76250, 80000, 80032, 82000, 97600, 100040, 102500, 122000, 125050, 131200, 152500, 160064, 164000, 195200, 200080, 205000, 244000, 250100, 305000, 312625, 320128, 328000, 400160, 410000, 488000, 500200, 610000, 625250, 656000, 800320, 820000, 976000, 1000400, 1220000, 1250500, 1563125, 1600640, 1640000, 2000800, 2440000, 2501000, 3126250, 3280000, 4001600, 4880000, 5002000, 6252500, 8003200, 10004000, 12505000, 20008000, 25010000, 40016000, 50020000, 100040000, 200080000]

約数ペア:

[(1, 200080000), (2, 100040000), (4, 50020000), (5, 40016000), (8, 25010000), (10, 20008000), (16, 12505000), (20, 10004000), (25, 8003200), (32, 6252500), (40, 5002000), (41, 4880000), (50, 4001600), (61, 3280000), (64, 3126250), (80, 2501000), (82, 2440000), (100, 2000800), (122, 1640000), (125, 1600640), (128, 1563125), (160, 1250500), (164, 1220000), (200, 1000400), (205, 976000), (244, 820000), (250, 800320), (305, 656000), (320, 625250), (328, 610000), (400, 500200), (410, 488000), (488, 410000), (500, 400160), (610, 328000), (625, 320128), (640, 312625), (656, 305000), (800, 250100), (820, 244000), (976, 205000), (1000, 200080), (1025, 195200), (1220, 164000), (1250, 160064), (1312, 152500), (1525, 131200), (1600, 125050), (1640, 122000), (1952, 102500), (2000, 100040), (2050, 97600), (2440, 82000), (2500, 80032), (2501, 80000), (2624, 76250), (3050, 65600), (3200, 62525), (3280, 61000), (3904, 51250), (4000, 50020), (4100, 48800), (4880, 41000), (5000, 40016), (5002, 40000), (5125, 39040), (5248, 38125), (6100, 32800), (6560, 30500), (7625, 26240), (7808, 25625), (8000, 25010), (8200, 24400), (9760, 20500), (10000, 20008), (10004, 20000), (10250, 19520), (12200, 16400), (12505, 16000), (13120, 15250)]