68788480

素因数分解:

$2^8\times 5^1\times {\mathrm{61}}^1\times {\mathrm{881}}^1$

素因数の和:963

約数の個数: 72

約数和(自身を含む): 167661144

約数和(自身を除く): 98872664

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 128, 160, 244, 256, 305, 320, 488, 610, 640, 881, 976, 1220, 1280, 1762, 1952, 2440, 3524, 3904, 4405, 4880, 7048, 7808, 8810, 9760, 14096, 15616, 17620, 19520, 28192, 35240, 39040, 53741, 56384, 70480, 78080, 107482, 112768, 140960, 214964, 225536, 268705, 281920, 429928, 537410, 563840, 859856, 1074820, 1127680, 1719712, 2149640, 3439424, 4299280, 6878848, 8598560, 13757696, 17197120, 34394240, 68788480]

約数ペア:

[(1, 68788480), (2, 34394240), (4, 17197120), (5, 13757696), (8, 8598560), (10, 6878848), (16, 4299280), (20, 3439424), (32, 2149640), (40, 1719712), (61, 1127680), (64, 1074820), (80, 859856), (122, 563840), (128, 537410), (160, 429928), (244, 281920), (256, 268705), (305, 225536), (320, 214964), (488, 140960), (610, 112768), (640, 107482), (881, 78080), (976, 70480), (1220, 56384), (1280, 53741), (1762, 39040), (1952, 35240), (2440, 28192), (3524, 19520), (3904, 17620), (4405, 15616), (4880, 14096), (7048, 9760), (7808, 8810)]