7111990

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{131}}^1$

素因数の和:288

約数の個数: 32

約数和(自身を含む): 13258080

約数和(自身を除く): 6146090

約数列:

[1, 2, 5, 10, 61, 89, 122, 131, 178, 262, 305, 445, 610, 655, 890, 1310, 5429, 7991, 10858, 11659, 15982, 23318, 27145, 39955, 54290, 58295, 79910, 116590, 711199, 1422398, 3555995, 7111990]

約数ペア:

[(1, 7111990), (2, 3555995), (5, 1422398), (10, 711199), (61, 116590), (89, 79910), (122, 58295), (131, 54290), (178, 39955), (262, 27145), (305, 23318), (445, 15982), (610, 11659), (655, 10858), (890, 7991), (1310, 5429)]