47980520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{349}}^1\times {\mathrm{491}}^1$

素因数の和:858

約数の個数: 64

約数和(自身を含む): 123984000

約数和(自身を除く): 76003480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 349, 491, 698, 982, 1396, 1745, 1964, 2443, 2455, 2792, 3437, 3490, 3928, 4886, 4910, 6874, 6980, 9772, 9820, 12215, 13748, 13960, 17185, 19544, 19640, 24430, 27496, 34370, 48860, 68740, 97720, 137480, 171359, 342718, 685436, 856795, 1199513, 1370872, 1713590, 2399026, 3427180, 4798052, 5997565, 6854360, 9596104, 11995130, 23990260, 47980520]

約数ペア:

[(1, 47980520), (2, 23990260), (4, 11995130), (5, 9596104), (7, 6854360), (8, 5997565), (10, 4798052), (14, 3427180), (20, 2399026), (28, 1713590), (35, 1370872), (40, 1199513), (56, 856795), (70, 685436), (140, 342718), (280, 171359), (349, 137480), (491, 97720), (698, 68740), (982, 48860), (1396, 34370), (1745, 27496), (1964, 24430), (2443, 19640), (2455, 19544), (2792, 17185), (3437, 13960), (3490, 13748), (3928, 12215), (4886, 9820), (4910, 9772), (6874, 6980)]