7990740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{431}}^1$

素因数の和:549

約数の個数: 72

約数和(自身を含む): 24530688

約数和(自身を除く): 16539948

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 103, 180, 206, 309, 412, 431, 515, 618, 862, 927, 1030, 1236, 1293, 1545, 1724, 1854, 2060, 2155, 2586, 3090, 3708, 3879, 4310, 4635, 5172, 6180, 6465, 7758, 8620, 9270, 12930, 15516, 18540, 19395, 25860, 38790, 44393, 77580, 88786, 133179, 177572, 221965, 266358, 399537, 443930, 532716, 665895, 799074, 887860, 1331790, 1598148, 1997685, 2663580, 3995370, 7990740]

約数ペア:

[(1, 7990740), (2, 3995370), (3, 2663580), (4, 1997685), (5, 1598148), (6, 1331790), (9, 887860), (10, 799074), (12, 665895), (15, 532716), (18, 443930), (20, 399537), (30, 266358), (36, 221965), (45, 177572), (60, 133179), (90, 88786), (103, 77580), (180, 44393), (206, 38790), (309, 25860), (412, 19395), (431, 18540), (515, 15516), (618, 12930), (862, 9270), (927, 8620), (1030, 7758), (1236, 6465), (1293, 6180), (1545, 5172), (1724, 4635), (1854, 4310), (2060, 3879), (2155, 3708), (2586, 3090)]