72887680

素因数分解:

$2^7\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1867}}^1$

素因数の和:1947

約数の個数: 64

約数和(自身を含む): 177198480

約数和(自身を除く): 104310800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 128, 160, 244, 305, 320, 488, 610, 640, 976, 1220, 1867, 1952, 2440, 3734, 3904, 4880, 7468, 7808, 9335, 9760, 14936, 18670, 19520, 29872, 37340, 39040, 59744, 74680, 113887, 119488, 149360, 227774, 238976, 298720, 455548, 569435, 597440, 911096, 1138870, 1194880, 1822192, 2277740, 3644384, 4555480, 7288768, 9110960, 14577536, 18221920, 36443840, 72887680]

約数ペア:

[(1, 72887680), (2, 36443840), (4, 18221920), (5, 14577536), (8, 9110960), (10, 7288768), (16, 4555480), (20, 3644384), (32, 2277740), (40, 1822192), (61, 1194880), (64, 1138870), (80, 911096), (122, 597440), (128, 569435), (160, 455548), (244, 298720), (305, 238976), (320, 227774), (488, 149360), (610, 119488), (640, 113887), (976, 74680), (1220, 59744), (1867, 39040), (1952, 37340), (2440, 29872), (3734, 19520), (3904, 18670), (4880, 14936), (7468, 9760), (7808, 9335)]