86321990

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{4217}}^1$

素因数の和:4336

約数の個数: 32

約数和(自身を含む): 163995840

約数和(自身を除く): 77673850

約数列:

[1, 2, 5, 10, 23, 46, 89, 115, 178, 230, 445, 890, 2047, 4094, 4217, 8434, 10235, 20470, 21085, 42170, 96991, 193982, 375313, 484955, 750626, 969910, 1876565, 3753130, 8632199, 17264398, 43160995, 86321990]

約数ペア:

[(1, 86321990), (2, 43160995), (5, 17264398), (10, 8632199), (23, 3753130), (46, 1876565), (89, 969910), (115, 750626), (178, 484955), (230, 375313), (445, 193982), (890, 96991), (2047, 42170), (4094, 21085), (4217, 20470), (8434, 10235)]