201781990

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{877313}}^1$

素因数の和:877343

約数の個数: 16

約数和(自身を含む): 378999648

約数和(自身を除く): 177217658

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 877313, 1754626, 4386565, 8773130, 20178199, 40356398, 100890995, 201781990]

約数ペア:

[(1, 201781990), (2, 100890995), (5, 40356398), (10, 20178199), (23, 8773130), (46, 4386565), (115, 1754626), (230, 877313)]