201290240

素因数分解:

$2^9\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1289}}^1$

素因数の和:1373

約数の個数: 80

約数和(自身を含む): 490917240

約数和(自身を除く): 289627000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 128, 160, 244, 256, 305, 320, 488, 512, 610, 640, 976, 1220, 1280, 1289, 1952, 2440, 2560, 2578, 3904, 4880, 5156, 6445, 7808, 9760, 10312, 12890, 15616, 19520, 20624, 25780, 31232, 39040, 41248, 51560, 78080, 78629, 82496, 103120, 156160, 157258, 164992, 206240, 314516, 329984, 393145, 412480, 629032, 659968, 786290, 824960, 1258064, 1572580, 1649920, 2516128, 3145160, 3299840, 5032256, 6290320, 10064512, 12580640, 20129024, 25161280, 40258048, 50322560, 100645120, 201290240]

約数ペア:

[(1, 201290240), (2, 100645120), (4, 50322560), (5, 40258048), (8, 25161280), (10, 20129024), (16, 12580640), (20, 10064512), (32, 6290320), (40, 5032256), (61, 3299840), (64, 3145160), (80, 2516128), (122, 1649920), (128, 1572580), (160, 1258064), (244, 824960), (256, 786290), (305, 659968), (320, 629032), (488, 412480), (512, 393145), (610, 329984), (640, 314516), (976, 206240), (1220, 164992), (1280, 157258), (1289, 156160), (1952, 103120), (2440, 82496), (2560, 78629), (2578, 78080), (3904, 51560), (4880, 41248), (5156, 39040), (6445, 31232), (7808, 25780), (9760, 20624), (10312, 19520), (12890, 15616)]