78291520

素因数分解:

$2^6\times 5^1\times {\mathrm{89}}^1\times {\mathrm{2749}}^1$

素因数の和:2855

約数の個数: 56

約数和(自身を含む): 188595000

約数和(自身を除く): 110303480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 89, 160, 178, 320, 356, 445, 712, 890, 1424, 1780, 2749, 2848, 3560, 5498, 5696, 7120, 10996, 13745, 14240, 21992, 27490, 28480, 43984, 54980, 87968, 109960, 175936, 219920, 244661, 439840, 489322, 879680, 978644, 1223305, 1957288, 2446610, 3914576, 4893220, 7829152, 9786440, 15658304, 19572880, 39145760, 78291520]

約数ペア:

[(1, 78291520), (2, 39145760), (4, 19572880), (5, 15658304), (8, 9786440), (10, 7829152), (16, 4893220), (20, 3914576), (32, 2446610), (40, 1957288), (64, 1223305), (80, 978644), (89, 879680), (160, 489322), (178, 439840), (320, 244661), (356, 219920), (445, 175936), (712, 109960), (890, 87968), (1424, 54980), (1780, 43984), (2749, 28480), (2848, 27490), (3560, 21992), (5498, 14240), (5696, 13745), (7120, 10996)]