123736691990

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{139029991}}^1$

素因数の和:139030087

約数の個数: 16

約数和(自身を含む): 225228587040

約数和(自身を除く): 101491895050

約数列:

[1, 2, 5, 10, 89, 178, 445, 890, 139029991, 278059982, 695149955, 1390299910, 12373669199, 24747338398, 61868345995, 123736691990]

約数ペア:

[(1, 123736691990), (2, 61868345995), (5, 24747338398), (10, 12373669199), (89, 1390299910), (178, 695149955), (445, 278059982), (890, 139029991)]