30719940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{6481}}^1$

素因数の和:6572

約数の個数: 48

約数和(自身を含む): 87118080

約数和(自身を除く): 56398140

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 79, 158, 237, 316, 395, 474, 790, 948, 1185, 1580, 2370, 4740, 6481, 12962, 19443, 25924, 32405, 38886, 64810, 77772, 97215, 129620, 194430, 388860, 511999, 1023998, 1535997, 2047996, 2559995, 3071994, 5119990, 6143988, 7679985, 10239980, 15359970, 30719940]

約数ペア:

[(1, 30719940), (2, 15359970), (3, 10239980), (4, 7679985), (5, 6143988), (6, 5119990), (10, 3071994), (12, 2559995), (15, 2047996), (20, 1535997), (30, 1023998), (60, 511999), (79, 388860), (158, 194430), (237, 129620), (316, 97215), (395, 77772), (474, 64810), (790, 38886), (948, 32405), (1185, 25924), (1580, 19443), (2370, 12962), (4740, 6481)]