88989990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{128971}}^1$

素因数の和:129004

約数の個数: 32

約数和(自身を含む): 222863616

約数和(自身を除く): 133873626

約数列:

[1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690, 128971, 257942, 386913, 644855, 773826, 1289710, 1934565, 2966333, 3869130, 5932666, 8898999, 14831665, 17797998, 29663330, 44494995, 88989990]

約数ペア:

[(1, 88989990), (2, 44494995), (3, 29663330), (5, 17797998), (6, 14831665), (10, 8898999), (15, 5932666), (23, 3869130), (30, 2966333), (46, 1934565), (69, 1289710), (115, 773826), (138, 644855), (230, 386913), (345, 257942), (690, 128971)]