80578720

素因数分解:

$2^5\times 5^1\times {\mathrm{313}}^1\times {\mathrm{1609}}^1$

素因数の和:1937

約数の個数: 48

約数和(自身を含む): 191094120

約数和(自身を除く): 110515400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 313, 626, 1252, 1565, 1609, 2504, 3130, 3218, 5008, 6260, 6436, 8045, 10016, 12520, 12872, 16090, 25040, 25744, 32180, 50080, 51488, 64360, 128720, 257440, 503617, 1007234, 2014468, 2518085, 4028936, 5036170, 8057872, 10072340, 16115744, 20144680, 40289360, 80578720]

約数ペア:

[(1, 80578720), (2, 40289360), (4, 20144680), (5, 16115744), (8, 10072340), (10, 8057872), (16, 5036170), (20, 4028936), (32, 2518085), (40, 2014468), (80, 1007234), (160, 503617), (313, 257440), (626, 128720), (1252, 64360), (1565, 51488), (1609, 50080), (2504, 32180), (3130, 25744), (3218, 25040), (5008, 16090), (6260, 12872), (6436, 12520), (8045, 10016)]